4L30E Teardown

In this video, i teardown a 4L30E Trans out of a 99 bmw. A key point in assembly of this unit is to index the planetary which i go over how to do.

[@1913printer]

The only video that shows a good tear down of the 4L30E. Please do consider a 1080p video camera. Keep up the Videos!

[@GaryFerraro]

+haloman977 Thank you will do.

[@hans747]

Great video, Gary. thanks for explaining everything along the way. You've helped me understand my 4l30e better.

[@GaryFerraro]

+Eric Seeger Thanks for watching

[@omarsherwan9389]

Thanks a lot Gary appreciated your fast response, From Kurdistan Region (North of Iraq), i would like to fix the gear because her e there is no tech to fix it only change, so i will try my best to figure out what i can do. again thank you Mr. Gary.

[@omarsherwan9389]

EXCELLENT video ; ) . I have a Omega B 1992 4L30e no codes, 1st and 2nd reverse gear good, 3rd and D gear slips, and here in my country no one can fix automatic transmission the only salutation for them is to change it with another one , i am planning to tear down the gear box depend on this great Video .

[@GaryFerraro]

Sounds like your 3rd clutch is no good(small drum that sits inside the intermediate clutch drum) Where are you located? Greetings from New York

[@johngoodwin9332]

Gary you do an awesome job of showing a tear down and explaining everything and I really appreciate you taking the time to do this for your subscribers. Would you consider doing a video showing each step to re assemble it?

[@GaryFerraro]

I will keep that in mind next one that comes in, shop is always busy but will try to film assembly

[@jerrygillgren5324]

Gary, its a '01 Isuzu Rodeo. Also, If I manually shift to 1st, it is solid, when I shift to 2nd, 3rd or D it flares and never really engages, although it will settle in somewhat. I've ordered both A&B solenoids and a valve body rebuild kit. I'm hoping this will get me by for a little while as I do believe I'll need to rebuild in the near future as I am guessing the clutches may be burned by now..

[@filbones]

How did this go?

[@HipsterianArchive]

very good video and very informative. I'm DIY'ing a repair in my own '97 e36 and it's turning out to be quite the endeavor. This video helped!

[@GaryFerraro]

wolflowmusic what's the problem with the trans?

[@HipsterianArchive]

Couldn't shift into 4th. There ended up being a bad solenoid, a fairly big chunk of metal had it caught up and jammed. After I found the bad solenoid I brought the trans to a shop near me that works on BMW's exclusively and had them make sure everything else was okay. Replaced all of the gaskets, friction disks, filters, and of course the bad solenoid. They said the trans should give me about 25-50k miles before it starts falling apart again (I'm hard on my car, I bring it to track events). They seem pretty sure I will have to get a new one. I saved a lot of money by doing most of the assembly myself, though.

[@GaryFerraro]

Glad to hear its fixed. Thanks for watching

[@jerrygillgren5324]

Hi Gary, Yes I pulled the pan as well and replaced the filter. BTW, it was flushed twice, with shifting in and out of gears.There were some tiny metal particles on the magnet, but not excessive.

[@GaryFerraro]

+Jerry Gillgren Its only 3rd? It slips all the time or only when cold or hot?

[@apollosport2895]

I have a 1997 BMW 328i with this 4l30e transmission, it was shifting hard from 2nd to 3rd and holding 2nd longer than any of the other gears so I changed the A and B solenoids and filter when I finished and went to test drive it got worse! I think it was stuck in 2nd gear because it took off slow and I didn't feel or hear it shift. 3rd gear disappeared, when it shifted for 2nd it went out of gear?! Neep help idk what to do, im going to try to drop the pan again and check if the solenoids are properly installed or connected

[@GaryFerraro]

Are there any codes present? solenoids are different they have to go into the correct spots

[@ArvineHarry]

I'm currently working on a ar-25 , basically a 4l30e, trans was built before and did not drive, tore it apart to encounter the overrun drum not applying and also the low brake actuator bleeding out pressure, the kit utilised was probably transtec due to colour of input shaft seals and logo on gaskets...the steel ring for band actuator being new, did not secure pressure well and possibly not stop the low band, thus burning up the band and scorching the drum...if this drum is not held in first or second, car will be lazy to pull off and also slip in second...it seems that the bore for this piston wears drastically and probably best to get a square cut oring seal to replace the metal ring seal on piston, possibly putting in a lower spring rate return spring for this piston also...

[@mr.privacy13]

Mr. Ferraro, would a tight or lose band on this cause third gear to "slip"? I replaced the A & B Shift solenoids and third gear slips bad. I adjusted the band, but maybe it's too tight or something. If you were near, I'd bring it to you. I drove on winter mode for a while, maybe that's the issue. Thanks for your videos and if you want to give me a tip, I won' t hold you to actual troubleshooting. My next move after readjusting the band is to take in for diagnostics. Keep up the professionalism and unique style in your videos!

[@gage123000]

Thanks for making this video 95 isuzu trooper needed her 4l30 e rebuilt

[@GaryFerraro]

Welcome, thanks for watching Are you in the New York area?

[@gage123000]

Gary Ferraro yes Auburn NY drove the 95 trooper up from Florida last October and blew the head gasket on the 3.2 sohc then swapped a 3.8 2nd series engine in and the transmission lost the low gears driving up a mountain road 2 weeks ago pulling a pop up camper. Lol

[@GaryFerraro]

Im on long island, Not sure how far, but nice town, i checked out some pictures. So you have no forward only reverse?

[@gage123000]

Gary Ferraro yea only reverse I was in 1st low 4 wheel drive when I got in some washed out roads and the bouncing back and forth with the trailer broke something was really loud then stopped driving

[@ratgreen]

Great video. If you were planning on upgrading this trans to hold more power, what would you do?

[@GaryFerraro]

You could see if high performance frictions are available, maybe add a shift kit and speak to a torque converter rebuilder to see what can be done. Not sure whats available in hard parts for performance, the pumps tend to wear, i would look at that closely and change the pump gears.

[@mikepratali5582]

Gary, great vid.. at 40:59 you spoke of a sonics pump bushing. can you give me the part number please. and also the torque convert clutch metal ring that is better than the plastic one. would've liked to have seen you reassemble the unit. did you ever find out what the issue was? Did the rebuild solve the first speed shifting?

[@GaryFerraro]

+Mike Pratali The sonnaxs part number for the bushing is 54253-01, the torque flight 6 input locking metal ring is much better than the solid teflon ring, the teflon ring may shrink and cause a 1870 code to produce. Remember on that pump bushing its oversized so it has to be honed or sanded out to fit the converter neck, also do you have a line up tool for the pump(i cant remember if i showed that on the video) Gary

[@rubberndirt]

just then and IN the snow with the same result. check transmission light came on I killed the engine and waited a few minutes and it drove home fine. also I didn't mention the gear indicator light on the dash wouldn't move out of park. I am afraid to change the trans fluid because I have heard several people say it will cause problems none of which were mechanics but I cannot afford a new transmission if it does tear up. by the way Thanks for taking the time to converse with me

[@pahol9n]

Hi Gary Ferraro! great video, will make video on the Assembly of automatic transmissions. Would love to see the build process. Thank you

[@GaryFerraro]

+Дмитрий Пахолик I will keep that in mind, thank you. Gary

[@isacoastalestates]

Great video , Thank you !!! I can repair car engines, I can clean and lubricate mechanical watches ... but transmissions, naah ... I will pay the best trany shop in town to fix it for me ... looks very complex. Thank you Gary

[@GaryFerraro]

Thanks for watching, Where are you located?

[@isacoastalestates]

@@GaryFerraro I am living in San Diego CA on a second thought maybe I can do a transmission ... it's a mater of learning enough and have a 4L30E to try on, and I have one left over from replacement I purchased from junk yard few years ago... still driving my 525i build in 1994 :-)

[@isacoastalestates]

@@GaryFerraro ...on top of that maybe I don't have to replace everything only rings and bands ... maybe I am naive :-)

[@dahlenaz07]

This video was quite helpful in helping me identify the location of the selective thrust washers, the front one with three tabs and the other behind the center support. They are both identified as #12 in the parts breakdown so it was very interesting to hear your explanation of the aft one as having no tabs. I found two broken segments of the tabbed one in my auxiliary pan.. Can you tell me how that washer might effect operation of the transmission? Might it contribute to pressurization or slippage issues? Thanks! ...

[@GaryFerraro]

+dahlenaz07 Well, these washer are selective for end play purposes, if one is used very thin it may allow the drum not to sit correctly.

[@dahlenaz07]

+Gary Ferraro I am guessing that the hub you mention is the overrun clutch housing. It appears to have no retaining ring to keep it from forward movement on the turbine shaft and making metal-to-metal contact with the back of the center support assembly.. Prior to loosing propulsion entirely, while trying to drive up on the vehicle ramps to lift one side, i was diagnosing slippage problems which came on suddenly and persisted, even without the TCM connected. All caused by low fluid a classic dumb move.. Thanks for the input...

[@GaryFerraro]

The overrun clutch is right behind the pump, the shaft goes through the drum and overrun planet, then a small snap ring holds it in place.

[@dahlenaz07]

+Gary Ferraro Thanks,, It appears that, in all selected gears, pressure to that piston is present forcing the drum forward against the three pronged selective thrust washer, and rotational movement is always present. So, the absence of that thrust washer would cause rapid metal to metal wear.. So the test drive of my vehicle around the block three times may not have been a good idea. Trips to the store would seem very damaging... Can i take the economic route and split the case to just install the thrust washer and look for the missing piece and re-assemble without disturbing how the other parts of the transmission were assembled and functioning? Thanks

[@GaryFerraro]

+dahlenaz07 You dont have to tear the unit all the way down, if you just have to address the front, that should be ok.

[@hans747]

One question: I'm tearing down my 4l30e, but I am having trouble getting the the portion of the case with the auxiliary solenoid the let go of the larger section of case. When I tap the case with a hammer like you at 18:30, nothing moves. I have already removed the bell housing, all the through bolts, the overdrive, and the wiring harness. Is there something else that I need to undo?

[@GaryFerraro]

+Eric Seeger It really should come out, possible stuck on the o-ring. Dont forget you have to index the planetary gear for reassembly. Gary

[@hans747]

Thanks! I will whack it harder with the hammer then. I am not planning to rebuild this particular transmission. When i pulled the pan off, it was full of soupy ATF and chunks of metal. I'm just tearing it apart because i want to see what actually broke apart. And i am using its guts to make a couple lamps.

[@aurelioaparicio7854]

Hi Gary. Looks like i will be doing one of this for a 02 isuzu trooper. I will be watching this video a lot.

[@GaryFerraro]

ok, any questions just let me know

[@aurelioaparicio7854]

@@GaryFerraro this is an expensive tranny. A friends trooper stopped running and gave it to me has 150000. What special tools will i need ? How much is a kit for this one?thanks

[@GaryFerraro]

@@aurelioaparicio7854 I get around 24-2500 for this, Not really special tools, Car does not move?

[@lanceuppercut6168]

My pop's does same, slips in 1st, all other gears are cherry. He had it rebuilt, came back good eventually started going out withing a couple months. He took it back like 5 times, each time same, good then eventually failed and he just gave up. Engine runs strong so might try to rebuild it or swap another trans in or take out engine and use in something with another trans or something.

[@GaryFerraro]

What kind of car? Year , make and model?

[@lanceuppercut6168]

@@GaryFerraro 2001 Isuzu Rodeo

[@maxxmorante9535]

Great Video Sir

[@Hitman-ds1ei]

Not a fan of the 4l30e at all, a slap together conversion of the old TH185 to make a 4spd with lockup convertor, they have a good shift logic but im still not a fan, the fact you need to drill and tap the band release port to check at service amazed me, the upgrade seal for servo pin is a must, with quite a few mods and Aftermarket fixes they are about as good as they should have been from the factory !

[@RS-gw8cb]

hi gary. My car is opel frontera b 3.2. There are faults p1850 and p1870. hits when the oil is cold. No problem when it gets hot. turbine or pad or sensor?

[@davedanielson1331]

I recently picked up a 2002 Isuzu Rodeo LS .. It has the same tranny.. Was wondering if maybe you had a quick answer... When I put it in drive it doesnt want to go.. But if I throw it down in low it takes off no problem and after I'm going around 20mph I throw it back in drive and it drives fine until I come to a stop.. Then I have to put it back in low to take off .. Would you have a recommendation of what it might be before I go spending a bunch of money unnecessarily ?

[@n2cable]

@5:18 what sensor was that..lol! Rewinded 24 times and still dont know what he said. thanks in advance if answered

[@GaryFerraro]

output speed sensor

[@Almeshtages3]

Nice video Gary

[@GaryFerraro]

+‫احمد محمد‬‎ Thank you

[@Wappapappa111]

Hi there, I am doing a transmission fluid change on my car, I am trying to learn a bit about cars. Just wondering what the point is of having 2 oil pans and any tips and tricks for a fluid change, cheers

[@GaryFerraro]

one is the main valvebody where the filter is, other is the Aux. valvebody, just drop the pan on the main valvebody

[@MrCesarr26]

Hello Gary I have a 4l30e on a BMW 528i I have a normal 1 to 2 no 3rd and no 4th shift but if I do it in manual is able to shift a little bit better some times into 3rd and 4th once is in 4th I can down shift into 3rd and shift into 4th with no problem when it down shift from 4th gear to first in drive position you can feel all the gears down shifting

[@GaryFerraro]

ok, when you say no 3rd, does it seem like it goes into neutral when it should go into 3rd?

[@Jakkiebascos]

What does it cost to have such a complete tear down done?

[@GaryFerraro]

with us pulling the trans or the trans is already out?

[@arthurbest8502]

Gary Ferraro Could you tell us both?

[@Jakkiebascos]

With the trans already out

[@GaryFerraro]

ok, just a teardown and not a rebuild?

[@Jakkiebascos]

Gary Ferraro The transmission is a little hard when it shifts, so it will probably need n redo.

[@gyanlatchman7461]

A great informative and helpful video. Tell me sir, where can I get a full rebuild kit for this transmission?

[@GaryFerraro]

I get all my parts from a company called transtar, the website is, www.transtar1.com Hope that helps. Thanks for watching,please subscribe. Gary

[@stevensoltau9869]

I have a 2001 Trooper with the exact operational issues as described here. Out of time so I am having a shop rebuild, but what was the actual problem here. I want to make sure it is done correctly.

[@GaryFerraro]

Not really sure, do you know if any codes are present?

[@MNSalty]

@@GaryFerraro no codes

[@GaryFerraro]

@@MNSalty was reverse ok while drive range was not?

[@enterBJ40]

Would you consider this transmission as reliable as the GM Turbo Hidramatic 400 or the 700R4? I'm planning install a remote hydraulic 15 microns filter and an auxiliary oil cooler . Wonder if this transmission also came in trooper diesel version...

[@camaroiowaguy23]

Hey Gary i have a question. I have a 97 bmw 528 and ive had the car for 3 years. Since i got it the transmission isnt right. The part where you mentioned in the vid sayin the bosch solenoid would cause problems, like what? My problem is when i put the car into D, i can feel it go into first then it pops out and into the next gear before i can get going. I have replaced my pressure control solenoid but not sure if it was bosch. this whole time i thought i was in limp mode but ive figured that im not as i can do highway speeds and the car does every other gear just fine, it just wont go or stay in first.. so i take off slow. i have to put the gear selector into 2nd to take off "faster" in a way.. my obd reader says p0748 pressure controle solenoid a electrical. is this an electrical issue or do you think something is stuck in the way causing it to not fully engage? ive asked indy shops and they told me its a control box under the drivers feet in the carpet but theres no box there as ive looked.. If at all you did give me advice and i go ahead and it works i would paypal you.. im just fed up with scratching my head. thanks. one more thing, the transmission in this video is identical to mine as far as having 2 seperate fluid pans and the smaller one being for the solenoids. but im not sure if my trans is GM or ZF, if thats a matter or not. thanks!

[@GaryFerraro]

Hello, this trans is a GM trans. Question, if you clear the code, how fast does it return?

[@camaroiowaguy23]

Hi, it comes back asap. i have my own obd reader and even had the indy shop use their bmw version, and the shop at my work. sometimes the code comes back before i turn the engine on and other times comes back after the first drive. but the problem never resolves.

[@GaryFerraro]

If the code comes right back, this is an electrical problem, which means the problem is either the solenoid, wires or computer. You could start by unplugging the trans, making sure none of the pins are pushing in on both sides of the connector, then maybe ohm the solenoid at the trans connector to check the internal wiring harness.

[@camaroiowaguy23]

even if one of the obd readers says "stuck open" next to the code? i know the main control solenoid is new as i put it in maybe 2 years ago? but ill check into it. since you mentioned bosch and im not sure its bosch. got it at oreillys. and ill check the pins. i know what your talkin about on the pins, same thing happens to the radio harness. ill just have to decide a day to do it. thank you much man.

[@GaryFerraro]

A "stuck open " code is a performance code, usually points to an internal problem

[@jerrygillgren5324]

Gary, just what the doctor ordered. EXCELLENT video. I have a '01 Isuzu 4L30e no codes, did a complete flush, 1st and 2nd gear good, 3rd gear slips. Is this a worn 3rd gear clutch issue?

[@GaryFerraro]

+Jerry Gillgren Hello, Yes very possible 3rd clutch problem, when they did the flush, did they take the pan down? Thanks for watching. Gary

[@PATIENTSAINT.]

Hi Gary , I have a 2001 isuzu rodeo that slips when trying to go into third, meaning first is ok,then a shift into second is ok, but around 30mph, i just get rpm increase and no speed increase on the road.Fluid was black, magnet was caked with sludge debris. solenoids were replaced along with filter and fluid. once im in second and it's time for third, the vehicle completely slips, its like im in neutral. is this indicative of the 3rd clutch pack being burned up, and will an overhaul be needed?

[@GaryFerraro]

Jason D yes. The direct or 3rd clutch is gone unit will have to come out

[@PATIENTSAINT.]

ok thanks gary. Just crossing my t's and dotting my i's.

[@GaryFerraro]

Your welcome

[@Dollimixed]

Benoni Ben Israel 😍😍😍😍😍😍😍😍

[@igormunoz4153]

Very imformative video,I have a rodeo 2000 Isuzu is this the same transmission?,Also who do you recommend for a trans kit,I need one

[@GaryFerraro]

Hello, Yes should be the same trans, I like Trans Tec kits, these kits are OE quality

[@igormunoz4153]

Gary Ferraro are you going to make a video on how to put it back together,I'm taking my trans apart,But don't know it it will go back together,Any particular detail I should look for when putting it back together would be apreciated,thanks for your replie

[@GaryFerraro]

Thee is a company in miami called ATSG, they may have a manual for reassembly, certain things have to go in certain places, you may want to look into that

[@igormunoz4153]

Thank you Mr.Ferraro,The information you provide is very important and helpful,and very well appreciated.

[@GaryFerraro]

Your welcome. Gary

[@DayoftheJakeL]

you didn't tske the accumulator apart!! I sat through the whole video hoping to see it. my car is pushing fluid out through a whole in the accumulator cover!

[@GaryFerraro]

Sorry about that, i must have forgot, That accumulator is held in with a snap ring (with eye lids) after the snap ring removal you may have to pry out the cover(but being the fact that its leaking it may come out easier) behind the cover is the spring, piston and a small piston rod. To get the rubber/metal cover out, i usually put a hole in the cover and use a seal puller. How much room do you have to work, its even a pain to get these out while on the bench

[@GaryFerraro]

It may be doable, i think ive done one in the car(not easy though) the cover is sold seperatly, i get all my parts from transtar, there web site is. WWW.Transtar1.com

[@reynaldotorres3718]

Nice video Gary! Question, I rebuilt the 4L30E trans on a 2002 Isuzu Trooper and second gear burnt out again. What do you think caused this?

[@GaryFerraro]

The 2nd clutch drums on these transmissions like to crack. How long does it take for the clutch to brun out?

[@clintonspx1200]

does the B shift solenoid click like the A does on 12VDC? My B didnt so I ordered a new one and that one doesnt click either. what am I missing?

[@GaryFerraro]

They may not click, some solenoids you have to check with a small amout of air through the snout and then energize the solenoid, the you should hear the ball seat or you will hear the air flow will flow free or be blocked.

[@clintonspx1200]

Thanks for the response

[@GaryFerraro]

welcome

[@jerrygillgren5324]

Hi Gary, Ok I have more data for you. I live in a very hilly area with a 18 mile ride into town on a 2 lane road. I drove the vehicle today and for the first part of the day it shifted positive into 1st and 2nd. 3rd it went into but slipped a little, then overdrive seemed ok, all while in "D"..I parked it for 4 hours then went to drive it. Reverse was fine but when in "D" it slipped in 1st and overall had difficulty shifting into all forward gears. i got a Check Trans/Check Engine light. I had my diagnostic OBD tester and pulled the code; P0756 Solenoid B stuck off-Guess it needs to be replaced? May as well do Both solenoids at this point? Any help would be great-Thanks for your help Gary.

[@GaryFerraro]

Jerry. For some reason your message didn't show on my computer. What type of car do you have ? Sorry I forgot. Gary

[@johngoodwin9332]

I rebuilt my 4l30e because of no forward motion in any gear even in manual 1st. I was not successful but could drive it in manual 1, 2nd then could put it in D and cruise at higher speeds. Eventually it would not move forward in any gear again. I’m going to attempt it again. What area should I be paying closer attention to.

[@GaryFerraro]

What did you find wrong? band no good. When you tear it down again let me know what you find

[@gregwms8886]

Gary what state are you located in.

[@GaryFerraro]

Im in New York

[@funkyoldmedina4232]

Great video Gary, I am working on a 4L30E on a 95 Honda passport and the overdrive housing is damaged. The original is stamped GM 64-01 having a hard time finding a match. I found a overdrive case stamped GM 64-04B it looks identical minus the dipstick hole. Would know if I can use the case in lieu of the original case ?

[@GaryFerraro]

Not so sure that will work, they did change the hydraulics in later year. Where are you located?

[@funkyoldmedina4232]

@@GaryFerraro Would you possibly have one lying around or do you know any sources that deal in selling theses cases ?

[@GaryFerraro]

@@funkyoldmedina4232 where are you located?

[@funkyoldmedina4232]

@@GaryFerraro USA , Northern California

[@stevemcginley77]

Question for you, I have a 1995 BMW 525i, 80k on it, transmission shifts fine. The problem I am having is it leaks actually quite severely at times, you could say intermittently, looks like from the bellhousing. Doesn't leak at idle in drive or park, noticed spots in the driveway. Bought the car knowing it had a leak and figured it was just the torque converter seal so I replaced the seal and the shaft o-ring. Funny thing when I took it apart it didn't look like the torque converter seal was leaking, looked dry around the seal but I replaced it regardless since I bought it and had the transmission out of the car. So needless to say it still leaks, sometimes really bad, sometimes it doesn't leak at all. Weird, been working on BMW'S for about 25 years now, NEVER seen this on a 4L30E. Thought it might be the case seal but doesn't look like it's coming out of the case. Looks like it comes out of the bellhousing. The prior owner fully disclosed it, said the car sat all winter and he date started it up in the spring and it leaked out fluid to the point where it was low enough to where the transmission failsafe light came on and he had it towed to a shop where they told him it needed a transmission so he decided to sell it, the car is immaculate, no rust, low miles for the age, bought it for my daughter, hate to replace the transmission for a leak. Have you ever seen this?

[@GaryFerraro]

Hello, It is for sure coming out of the bellhousing(from the inside where the torque converter is)? When you looked inside the bellhousing was it wet all around?

[@stevemcginley77]

Gary Ferraro Actually thats whats throwing me for a loop, it looks as though it is right now as its installed in the car when I look at it thats why I replaced the torque converter seal but when I took it out of the car and removed the torque converter it wasn't all wet around the bellhousing behind the torque converter like it shouldve been if the torque converter seal had been leaking. If the torque converter bushing was leaking I would see the same type of leak as though the torque converter seal was leaking wouldnt I? I don't see any wetness between the bellhousing case and the intermediate housing so I don't think it's the case seal and the leak comes and goes which is weird. I drove it the entire week and it had been fine up until today, I opened up the fill plug this morning and checked the fluid level and it was spot on, then drove it today to run some errands after checking the fluid level and it started leaking again after driving it about 25 miles, now I did have it in sport mode so I don't know if that had anything to do with it. No codes, transmission shifts perfectly, just has this annoying leak. Can't duplicate it when the car is static, only leaks apparently when driving it.

[@GaryFerraro]

Are you sure its from the trans, have you checked other fluids such as power steering and even engine oil. These 4L30's do have an issue of leaking from the front because of the pump bushing, i use a special bushing when i rebuild these units.

[@stevemcginley77]

Absolutely positively from the bellhousing area, absolutely positively trans fluid. There are no other leaks in this car anywhere. Its trans fluid for sure, bright red because I have changed it when I replaced the torque converter seal. The lines are rusty but not leaking one drop of fluid. I see it coming out of the mating surfaces between the engine block and the transmission bellhousing. The only reason I've contacted you is because its got me stumped. I don't see fluid strewn around inside the bellhousing, only coming out of the bellhousing. What could leak like that out of the bellhousing and not show signs of it being thrown around in the bellhousing yet still coming out of the bellhousing? Could a pump bushing do that? I am wondering if the case itself is cracked but where and why? Where are you located? I am outside of Chicago, I'm afraid to have someone rebuild this thing and still have the problem. We don't rebuild transmissions at our shop, only replace them. I have watched several videos and read rebuild manuals in the 4l30e and doesn't look super complicated but I don't really have the time to tackle the job right now. I am trying to remember there was an SIB released by BMW back in the day about this transmission where we took the front case apart and replaced some teflon orings along with the case gaskets but I can't remember what it addressed? I remember BMW supplying us with case alignment tools to do the job none which I have anymore. You ever heard of an SIB like this? Its no longer in our bulletins or in the archives. Most older BMW techs I used to work with have gotten out of the trade or retired do I don't know anyone I could ask anymore. Should I bite the bullet and purchase a reman unit or pursue this issue? I've had a couple transmissions rebuilt in the past and they never seem to shift quite right after having it done. Hard to find good reputable shops in my area. Dont want to spend the money if theres going to be problems, rather put the money towards a reman unit with a warranty.

[@GaryFerraro]

The only things inside the bell housing are the front seal and bushing. Ive only seen them leak out of the front because of the bushing. Was there any oil inside the bellhousing? Im in new york on long Island. If the pump bushing is worn, the converter will lie against the seal causing fluisd to come out. Its certainly not a common issue, i dont see this problem too much, but the couple of times i did, i would send the converter out to be leak checked, then i would change out the bushing(with a sonnax bushing) and a new front seal. But when you pulled the converter out you saw oil?

[@Runeknight9595]

Hi Gary I have an 01 isuzu that will have poor acceleration from a stop but only after it heats up 30-45 minute drive. Otherwise shifts fine. Like a bad stator clutch poor take off, but how would heat affect this? what parts would i focus on replacing during tear down?

[@adrianpf6444]

hi Derek i have the same problem with my axiom 2002, did you find the solution to the problem? If so, can you tell me how to fix it? my email [e-mail] thanks

[@stevebrown3907]

Hi Gary, I've got a 1997 Opel Calais 2.6 Dual Ram that uses a GM4L30E transmission. Currently, the transmission is in need of an overhaul and I'm having difficulties in finding the exact specs for my transmission as there are several variants to the GM 4L30E transmission. However, judging from how the transmission filter from my Opel looks, it is exactly the same as the one used in the 4-speed auto BMW E36. My question is, are most components like the gaskets, clutch etc the same across all the GM 4L30E transmission?

[@GaryFerraro]

Question, where is the car located? U.S I wanted to ask my supplier about your car, depending on the year, the 3rd clutch has different thickness, also the hydraulics changed in 2000, there are different gaskets, you have to becareful, they have to matched up against the plate. The stator gaskets in the o/d housing, have to watch on that, they give more than one set in the kit, you have to know what to look for.

[@stevebrown3907]

Hi Gary, thanks for getting back to me. A little intro on the car, it is actually a Holden(Australia) but rebadged an Opel by GM when it came to the Malaysian market. I have also tried contacting Holden but due to the age of the car, they have no records on the specs. The car is in Malaysia by the way. The current problem with the transmission is that during acceleration, the auto box has difficulty up-shifting. Most of the time, I have to manually shift into 3rd and only then does it up-shift with a loud thud. Over the months, it had gotten worse that it does not up-shift anymore even manually. Can you please advice on what could be the problem and the parts that need replacing?

[@GaryFerraro]

ok, first, how is the fluid level and condition of the fluid? do you know if any codes are present for the transmission? it just stays in first gear?

[@stevebrown3907]

Ok, so here is the scenario. Accelerating from a stand still the car moves fine, then halfway through the acceleration the rpm goes up high but the power is not transmitted to the wheels. It feels like the engine is completely detached from the transmission. You can even free rev it but the power does not go to the wheels at all. This is the point when I'll shift the gear lever from D into 3rd and only then the gearbox kicks in with a thud. After that, there is power to the wheels. The transmission has had its fluid changed a couple of times with Castrol ATF Dex III but still the problem persists. The fluid level is also maintained at an optimum . My guess is that it shifts from 1st to 2nd but has difficulty engaging 3rd. I've also not received any transmission codes except for a check engine light.

[@jeremyrose5128]

Nice job on tear down lots of good info, what was the cause of this transmission failure? My wifes 1999 honda passport doing sort of same thing engine cold in drive it stays in 1st gear until almost 3grand then shifts like normal rest of gears, and runs fine until it sit and cools, no check codes. Any help would be greatly appreciated.

[@GaryFerraro]

could be a sticky shift valve or maybe a lazy shift solenoid. It could also be hard lip seals on the pistons. It just does this once in the morning or does this until it warms up

[@jeremyrose5128]

@@GaryFerraro hey Gary, yeah it does it before it warms up, after driving for 10 min transmission shifts from 1st to second fine.

[@jeremyrose5128]

@@GaryFerraro update she just called she said doing it now after every stop she makes, and shes a rural mail carrier so she makes lots of stops, lol

[@GaryFerraro]

@@jeremyrose5128 ok, 1-2 shift is the only issue? maybe see if any codes are present

[@jeremyrose5128]

@@GaryFerraro Yes sir, car wont shift into 2nd gear until you hit almost 3000rpms and shift into other gears fine, No stored codes just checked and no pending codes, thanks for your time and help.

[@f8taljudge270]

How do you know where the check balls go when I took my clave body out 3 fell out an I have no idea exactly where they go I bought a manual but it's very unclear where they say to put them

[@GaryFerraro]

you could look for witness marks on the plate. did you try to google the checkball locations?

[@denzilflemming2493]

My 528i bmw gave a P0740, is that the TCC solenoid only need changing, is that in the aux box?

[@GaryFerraro]

You have the 4L30E trans? What year car?

[@denzilflemming2493]

@@GaryFerraro yes, 99 528i , 4L30e, the tcc required by rockauto is a double solenoid with a wire harness, the car at 75mph hovers just above 3000rpm. thanks

[@denzilflemming2493]

@@GaryFerraro as per rockauto, there is a lock-up solenoid, and the tcc solenoid which is a dual piece, where are those located? thx for your prompt reply, see my other reply

[@mr.privacy13]

Impressive!

[@GaryFerraro]

Thank you sir, and thanks for watching

[@SKYNETDUO]

What kind of o ring you use in the input shaft at 36:46 And what rebuild kit would you recommend to use?

[@GaryFerraro]

Globex Ave I use a metal clad ring from a Chrysler Torque Flight 6 transmission. I had problems in the past with the solid teflon ring

[@filipsabol7]

@@GaryFerraro can you please find, write some link to know where to buy it or at least how it looks like? 🙂

[@GaryFerraro]

@@filipsabol7 will look to see if i have any

[@HandyTim]

Can you tell me what this is?

[@jaimecastillo3873]

Do you have assembly video for this 4L30 sir Garry?

[@GaryFerraro]

I do not sorry

[@jonicook60]

Hi I have a 2002 Isuzu rodeo that shifts good but won't reverse, it shifts into reverse and if you give it gas you can feel it try to move backwards but can't it also stops the engine from revving it boggs the engine, almost like it's in forward and reverse, any thoughts ? No codes

[@GaryFerraro]

ok, question, does the car move forward in neutral?

[@jonicook60]

No all other gears ar right

[@rawley2076]

Hey Gary, I have a 4L30 -E and i had a small mishap with a gate stop which damaged the larger pan underneath. I took it to get fixed and the mechanic brought it back and i drove it with him and it worked fine in all selections Economy ,Manual and Sports...I work at home and didn't drive the car for two days after I got it back..now it just starts and idles but won't engage in Drive or Reverse....what could be the issue?! Thanks for any help.

[@GaryFerraro]

What kind of car do you have?

[@rawley2076]

1997 bmw e36 318i covertible..wow thanks for the quick response!

[@rawley2076]

i've been watching youtube vids for the entire afternoon and it seems like it could be a solenoid issue.

[@GaryFerraro]

Did you happen to try to put the car in manual one?

[@rawley2076]

no i didn't.

[@bax442]

Hi, I need your help. I have a Vauxhall Omega 2002 with the same gearbox. I have a problem identifying washer from 16:57 on my gearbox. My washer doesn't have any tabs, does it mean that they snapped off? In the catalogue I found that there are washers with 3 tabs and with no tabs that have the same part number. I am using JPAT catalogue. With no tabs (1969-up)(part no. 24211AC), with 3 tabs (1987-up)(part no. 24211BB). The pump looks exactly the same as yours, it has 3 groves for the tabs. What should I do? Also I can't find the washer without tabs anywhere. I believe that only the thickness matters in case of this washer?

[@GaryFerraro]

The 3 tab washers go on the pump, the one with no tabs go on the stator support where the drums are, they may be broken off

[@bax442]

Where can I buy the one without tabs? It seems that its impossible to find it and I need it badly. As it turned out the pump washer has tabs, i don't know why I got so confused, the other one doesn't. Thank you.

[@GaryFerraro]

Where are you located?

[@bax442]

UK, but I am happy to pay for postage from any location. Can you quickly look at this PDF please: images.omegaowners.com/downloads/Autobox_Docs/4l30e.pdf My goal is to change all seals, all o-rings and all plastic washers which snapped off in my previous gearbox after 140K miles causing huge damage. Are there any other plastic parts which can break in this gearbox? The number 600 is the black washer with 3 tabs. The number 603 has no washers right? I am asking because I put the gearbox back together as I have very little space in my garage at the moment. Are there any other plastic parts which can break in this gearbox? Thank you for your time.

[@GaryFerraro]

Yes, 603 is on the support, it is selective, my supplier cannot ship outside the u.s, can you find this online?

[@jonathancantor93]

hello gary, i recently rebuilt my bmw's 4l30e. replaced all clutches gaskets and seals. i did this because there was an occasional shudder in 1st upon take off, and reverse would take foever to engage. well now all those problems are solved, but now i have a whine, as soon as engine starts, there is a whine in ALL gears, constant and rpm dependent. what could it be? i dont remember the original position of the pump gears, will a new set of gears solve this, do the gears have to face the pump housing of the torque converter? thank you, any help appreciated

[@GaryFerraro]

Could be pump noise, im assuming the pitch of the noise changes with engine rpm, do you remember which way you placed the gears, were the tabs for the gears closer to you or more in the pocket of the pump? (the tabs that the converter attaches too so the pump spins) What did you do with the filter? noise is there cold and hot?

[@jonathancantor93]

Gary Ferraro Hello, yes, the pitch of the noise changes with rpm and does not go away, hot or cold. noise seems to be coming from the front of the trans aswell. i put both gears with dots facing up, away from the pump pocket, are the dots supposed to be aligned?. The tabs for the converter are right in the middle, no offset, both sides of the gears are identical exept for the dots. my old oil filter is long gone. thank you!

[@GaryFerraro]

The pump as an assembly has to be aligned when its going together, did you put a converter hub or anything to align the pump

[@jonathancantor93]

yes i aligned the pump and replaced pump gears, problem turned out to be a rice sized metal speck wedged in the planetary gears, thanks you so much for the tips! helped alot

[@GaryFerraro]

Glad you got it fixed

[@HandyTim]

I have an issue with 1rst going into second when I release the gas pedal and rpms drop it then shifts hard into second and I feel the rear end or u joint slam hard

[@GaryFerraro]

do you have any codes? check engine light on?

[@HandyTim]

No check engine light however it is a 92 Isuzu rodeo.

[@HandyTim]

I'm thinking it may be the sensor next to the shifter might be dirty. I just had an ac compressor problem so I filed/cleaned the electrical connectors and that fixed that problem.

[@HandyTim]

I'm not sure how to read the codes on this vehicle I've done research looking for the area to jump to read engine light flash and have found one wire set on drivers side that might be for code readings and 3 behind the kickplate on passenger side SMH I guess I'll have to use process of elimination just don't want to risk shorting anything

[@KyleMassengale]

Thanks for the video. I am still debating on trying to rebuild the transmission on my 97 Rodeo. It shifts fine in reverse and in to neutral and drive. but it won't shift out of first gear. When I engage the winter button it is like it's in neutral and even rolls backward. Do you think it toast or some electrical problem? When I get it rev'd up to 3500 rpms its like it disengages and wont go back in 1st gear until I go from 30mph to about 10mph. It will go back to first gear and thats all it will do. Hoping its electrical so I dont have to try this. Thanks !!

[@KyleMassengale]

Also, I changed the filter and oil. The guy who had it before me must have never changed it. the pan had a thick layer of dark sludge.

[@KyleMassengale]

Also, I put a meter on the shift solenoids and each was was showing 18ohms. Does that mean they are good?

[@GaryFerraro]

Do you have any trouble code?

[@GaryFerraro]

18 Ohms is ok eletrically but that doesnt mean they are good mechanically

[@KyleMassengale]

Gotcha. Thanks! I have not pulled any codes yet. I will do that next week. No check engine light or transmission light is one. The 'Check Trans' light comes one when I rev it up to 3500 rpms and get up to 30 mph. but it goes off once I turn the motor off and crank it up again. I found out that it is leaking from the fluid lines out of the radiator. Not much but enough to make a small 6" wide puddle after idling for 15-20 minutes.

[@MrHKashka]

hello, i have this gearbox on my opel omega 3.2L V6, the third and fourth speed pass with jerkily, do you know what is the problem ? need drain ? or change the two soleoids ? what is the Tork for the gasket please ? thank you very much :)

[@GaryFerraro]

What happens in 3rd does it slip? common for the clutches to wear out. Sorry for late reply

[@MrHKashka]

@@GaryFerraro no, the speed has a jerk but goes well, my car has 130 000Km. thank you

[@GaryFerraro]

@@MrHKashka Does this happen on the shift?

[@MrHKashka]

@@GaryFerraro yes just when the shift is passing

[@michaelc9128]

@@GaryFerraro the 3rd slip is what my 99 Isuzu is doing doing been dealing with it for 8 years. It's random that it does it ...but it still runs great have over 200k on the vehicle

[@kroffustsnail]

Thank you for this video - following your process this way is much easier than trying to read people's internet textbook posts. I have a 92 E34 BMW - I just found what looks like the front pump washer broken in the aux unit pan (same one you pull at about @17:00 in after removing the bellhousing). It looks like the front pump also rides against the large ring spacer? I only dropped the pan after I saw the gasket was weeping - the car drives fine aside from occasionally flying away from 3rd when the trans is extra warm from town driving or long highway jaunts in hot weather. Basically, it occasionally behaves like it has slightly reduced pressure when it's hot, the same issues kits like this are supposed to address: www.cascadetransmissionparts.com/4l30evalvebodyupgradekit.aspx Shifting to 3 manually will usually grab 3rd fine if it flys away, and then you can keep going on through 3 and 4 like nothing happened, and successive shifts to 3rd are fine. Sometimes selecting 3rd, there is a delay and then a harder engagement to 3rd, but then it seems happy afterward. 2-3 feels "slow" or "soft" sometimes - never when cold though. Dropping the main pan for a full filter change back in summer only showed some clutch material and a piece of one friction disc in the main pan (section of fiber with some teeth) - nothing terribly alarming for the mileage. The behavior hasn't changed much since I bought it at 235k, it has 250k now. The car has had only 3 prior owners, all regular-maintainers at nice shops). I have located a good cheap spare, but what should I expect from the current transmission given it's been driving around without this spacer for possibly 10-15k or more? - unless I broke it down the block on my last drive! It feels like it will just keep plugging along but I don't know what to expect to lose first. I'm kind of curious how long it'll go since it's already gone so far.

[@GaryFerraro]

If this is running away in 3rd sometimes when hot, may have a problem with the drum seals. I think you may loose 3rd and 4th first, those kits are fine to use but if you have a problem with clutch seals it may not address the problem

[@williamperri3437]

My Isuzu Rodeo with 159k miles is still shifting good but I need to replace the transmission line and pump some fluid in there and because of the common problems with this transmission I'm very worried. 😂

[@GaryFerraro]

One of the cooling lines are leaking

[@williamperri3437]

@@GaryFerraro yes. Transmission shop tried to charge me 900 and I was shocked so they suddenly went to 500 so I pulled it out of there and a friend is probably going to do it. I'm just trying to decide between copper steel and rubber and most importantly figure out the correct diameter. These Transmissions make me really nervous but I absolutely love my Isuzu Rodeo. It's just not cost-effective for me to put 3 to 5 thousand dollars into a transmission for that vehicle with the price of gas. As of now it's running and shifts fine but I'm just a little bit worried about messing up the refill.

[@GaryFerraro]

@@williamperri3437 Not sure i would use rubber if your replacing the whole line

[@rubberndirt]

just curious. went up a trail with the wife nothing serious but I dropped it into 1 and 2 coming down hills and the check transmission light come on. stopped at the bottom and killed the motor for about 15 mins or so. I guess it cooled off because it went off and we drove home fine. 00 Isuzu rodeo 4l30e. have any ideas? let me know please

[@GaryFerraro]

Alex, Do you mean when you came to a stop the engine shut off, did it start back up again in neutral and as you put it in drive the engine would shut down again?

[@rubberndirt]

Gary Ferraro no no no sorry did not specify. I shut it off to cool it off for a few minutes. when I started it back we drove home just fine.

[@GaryFerraro]

Ok, have you had it scanned to see if codes are present?

[@rubberndirt]

Gary Ferraro cel light has been on since I got it. had it scanned and come up something about o2 sensors that has been 2 years ago and I haven't had it scanned recently nothing about transmission there may be another port to scan I'm not sure.

[@GaryFerraro]

No, just that, possible the trans may have gotten alittle to hot while driving, have you had in the 1st and 2nd range for a while when driving?

[@kloppskalli]

hi there, my 4L30 gearbox in a 1996 Isuzu KB alias Rodeo.. works totally normal 99% of the time, only every now and then i am stuck in 1st or 2nd gear - unfo no experts around here in Cyprus as it seems, anybody here know whats causing that kind of problem?

[@GaryFerraro]

Have you had the car scanned for codes?

[@kloppskalli]

i had it at my mechenic's garage for oil change and filter cleaning until filter wasn't collecting much dirt anymore. Before the were some crumbs in the oil.. l must admit that i thought there wasn't much electronics in those old gearboxes from the 1990s yet, that one could read out for codes. The mechanic also gave me the impression that the cause could be only mechanical, but after i read a bit into this matter, i get the idea that i must talk to the Isuzu garage.. problem here Cy is that people never admit if they dont understand a problem, normally they will just start working on it and charge you even if it doesnt work. Or they'll say get another gearbox. ;-)

[@GaryFerraro]

What you may want to start with is a set of shift solenoids, 1996 should be OBD2 does anyone have a scan tool that can hook it to check for codes?

[@make3778]

Helou. Opel Omega, shcewrolet omega, isuzu trupper, bmw 5 series, cadilac catera. GM 4L30E.

[@GaryFerraro]

That is correct

[@MILO20121]

Thx u thx u so much

[@GaryFerraro]

Thanks for watching

[@BeeRich33]

Bimmer. Beamer is a BMW bike.

[@juanrios2526]

Izusu and honda passport same

[@josedominguez2021]

50,000 Likes!

[@GaryFerraro]

Thanks Jose'

[@Сергей-щ1ч4н]

А можно с переводом на русский?)

[@GaryFerraro]

Jeff Gilbert, I cannot find your post, you can e-mail me at [e-mail]

[@crayfishtv]

Every transmission video shows opening it up, pulling some seals out - & the clutch plates but never show re-assembled and back in a vehicle and working again ! (& even if they did... it all seems by anonymous people in secret shops - if you go to an actual transmission place its petulant, angry people who try to destroy your vehicle when test driving it)

[@GaryFerraro]

All is well here. takes a lot of time to do a rebuild video, when i have the time and there is no rush to get the transmission built then i can do a rebuild video. Currently working 7 days to keep up with work

[@crayfishtv]

@@GaryFerraro do you feel your rebuilds with the upgrade kits 4L30e 004wd are better than new? meaning its worth doing on a never rebuilt but OLD (22yr) tranny to avoid it breaking down as per normal wear?

[@GaryFerraro]

@@crayfishtv Yes, always do upgrade, some units i do my own and others i will purchase shift kits or other upgrades that may be available. Also, if there is an upgraded part available and the original one is still good, i still toss it and purchase the upgraded part

[@crayfishtv]

@@GaryFerraro I have 00Rodeo4x . I learned that the Trooper's 4L30 has an extra solenoid TCC (&some Axioms/maybe 03Rodeos) - controlled by the ECM - does this do anything significant & would it make this version of the tranny more or less reliable ? (i'm guessing less reliable based on that Trooper ppl complain about the tranny) .. What I had in mind is that if its better maybe an extra controller could be added to use it that version in a Rodeo...

[@GaryFerraro]

@@crayfishtv Not that i know of, they all have a TCC solenoid but there is early and late

[@shavownchambers6541]

My own won't move

[@Maxumized]

Looks like you’re gutting a pig

[@chadgray6467]

Never gets through the whole thing. Waste of time

[@GaryFerraro]

Helps some people

[@andreasrcm9815]

fluid not build stupid auto correct

[@GaryFerraro]

To M garcia , your post did not show up, you can e-mail me [e-mail]

[@mahadyhasanbappy9973]

Thank you so much sir,,last 2 week i try to fix this gearbox but i cant,,now i see your video nd finally i can fix my problem

[@Street2Victory]

I have a holden jackaroo 2002 v6 with this transmission payed 4500 for it to be rebuilt. Definitely want to learn how to do myself

[@GaryFerraro]

wow, i can't get any where near that figure, i get about 2500. Are there many transmission shops in your area?

[@Street2Victory]

@@GaryFerraro yes but in australia its hard to get an auto shop to work on the 4l30e. A few places i went for quotes told me they dont touch them. I have a question about the transfer box, is it a borges and warner in the trooper. Wanting to put reduction gears in.

[@garrettprosser7336]

I really appreciate your video i recently got a transprogram error the car went in limp mode. I dropped the pan and found no metal chunks but lots of fine metal dust on the magnet. Im doing a fluid and filter change hoping that works. If that doesnt work what else can i do with the trans still attatched to the motor as i dont have a lift and cant move the car right now without a tow. Any suggestions would be much appreciated trying to get a little more life out of it.

[@GaryFerraro]

What code is present?

[@garrettprosser7336]

@@GaryFerraro idk if it lets me scan the trans but ill try with my scan tool its obd1

[@GaryFerraro]

@@garrettprosser7336 if there is a code present, that will give some direction

[@yxie97]

Gary, thank you very much for the video! I'm working on my 2000 BMW Z3. Lost reverse. So I'm rebuilding its 4l30e transmission. I'm going very slowly because this is my first time rebuilding a transmission. I use this video, ATSG manual, and a few other sources. So far I'm doing fine with disassembling the 4l03e transmission. And now I have almost put everything back together. The only thing I haven't been able to figure out is how to disassemble the 1-2 accumulator assembly, which is the big round thing that sticks way above everything else on the main valve body. Your video doesn't cover it. The ATSG manual just says disassemble it and assemble it with no details. I can push the round metal cover down but I don't see any snap ring etc to loosen. ATSG says I should replace 1-2 accumulator seal but i can't figure out how to do that. Please advise. Thanks

[@GaryFerraro]

Thats also the band apply, There is a snap ring to remove. I use a socket to put around the adjuster and a C clamp or a special pair of vice grips to push down. How was the band? Sometimes that piston is a little tricky to put back in, there is a metal sealing ring that you have to tuck in place and push the piston down.

[@yxie97]

Gary, thanks for your reply. It's not the band apply servo though, which i was able to disassemble. I can't seem to attach a picture here but there is a smaller round piston on the valve body with a pin in the middle. I can push the piston down but I can't see anything I can do about it. The pin the middle may be screwed in but i didn't want to twist it and cause any damage if that's not how it's done.

[@GaryFerraro]

Ying Xie Oh ok I know what your speaking of. There is a small C clip that holds that together as long as the spring is ok I leave it alone

[@GaryFerraro]

Ying Xie Sorry crazy busy here. Can't think sometimes

[@yxie97]

Busy is good! Thanks for replying during your busy day. Really appreciate your help. Again excellent video!

[@johngoodwin9332]

Opened up my 4l30e to find out the band is pretty bare of any friction material. Along with some of the frictions from one of the drums. So that’s why I didn’t have any forward gears? What else should I be looking at to replace. Would it be bad of me not to flush and clean everything? Cuz I just did it not too long ago.has very little material in the pan

[@scottbartlett4853]

Old video I know, I know. Can you say why the 4l30e is such a weak trans? Or do you even agree? How would you go about beefing one up?

[@ramoncortes5387]

Please, video in spanisht

[@williamtreat5893]

Dear sir, I'm working on a 1999 Isuzu rodeo with the 4l30e trans-in the video did you say that the low band Solenoid was in the large pan? and if so where will I find the TCC Solenoid-large pan or small? While I'm in there I'm going to change the fluid-filter 1-2 and 3-4-Solenoids and the TCC Solenoid and the Low Band Solenoids-Some people have told me that there is a 5th Solenoids in there but no one can tell me what it is called or where it is- would you know what it is called and where the 5th one is? Do you think that an external cooler and fan would be good for this trans?

[@GaryFerraro]

Band solenoid and shift are located in the large pan. Small pan is TCC and EPC solenoid, The epc solenoid is very hard to get and expensive, i usually do not change this solenoid, i change the other 4

[@williamtreat5893]

@@GaryFerraro thank you so much for the info-I have been told that the 4l30e is a peace of junk to start with-would it be a good ideal to install a trans cooler and a fan?

[@scottdowney4318]

At 16:59, that 3 tab plastic washer. I found it cracked in half, in the front rectangular fluid pan couple years ago. Does that make sense? Why would it split in half? I saved the old washer. What if the washer is gone, what effect on the trans? Vehicle is a 1996 Trooper 4WD with the 4L30e. Is a metal washer available and the number for it? What is with this plastic stuff...

[@GaryFerraro]

That washer may be selective(not sure) never put a metal one on, where did you find that?

[@scottdowney4318]

@@GaryFerraroLaying In the front small rectangular oil pan. It is cracked in half. it looks big enough to slide over the end of a torque converter.

[@n2cable]

whats a selective gasket? ANd being somewhat mechanical and having a 4l30 tranny that needs to be gone through i was thinking i might give it a go. Any recommendations or advice? Isuzu rodeo 3.2 2001 2wd

[@GaryFerraro]

Selective maybe would be a shim, comes in different thickness, What problem are you having with your trans?

[@n2cable]

@@GaryFerraro its shuttering bad when stepping on it while at a stop if i gun it or even if im in a lwer gear and punch it it shutters. I put Lucas treatment in it and it helped but then again i am really easy on the car. I will be putting some serious miles on it soon and want it to be dependable as can be. Trying to get a lil more miles out of it before i do anything. I was going to put it into Aamco and suck it up and get hit $ but then i want to be able to buy and sell isuzu Rodeo's and troopers as a side gig. I figured if i learned the tranny rebuilds on the 4l30s i could save some money. Thoughts?

[@khaniftikhar9225]

Sir What is means of epc.tcc. and lockup solenoid. And what it wark

[@bradmiller2444]

Another great video Gary. Thanks

[@GaryFerraro]

+Brad Miller Thank you brad. Gary

[@andreasrcm9815]

Hey Gary, I have a 4l30e in my 94 e36 325is BMW. It had the lifetime BMW build in it and apparently didn't need to her serviced...WRONG!! Well I changed the fluid and now it seems to go into "Limp Mode" aka 3rd gear only. I thought it was the shift solenoids so I changed those out and put a new filter and new build and it still seems to intermittently go into 3rd? There was a little clutch debris and black sludge but no an unusual amount considering the car has 190K miles on it and never been rebuilt Your thoughts ?

[@GaryFerraro]

Is there anyway you could have it scanned for codes? this may give some direction

[@rajangill2507]

I’m having the same problem with my 1999 bmw 323i. It moves very slow revs high. What was the fix for you?

[@GaryFerraro]

assuming it's not in failsafe and full of fluid, your band may be no good. How is reverse? Any codes?

[@rajangill2507]

@@GaryFerraro check engine code Po 748 and then for transmission I’m getting this codes P104= Voltage supply solenoid valve and electronica pressure regulator P5= magnetic valve main pressure. I took the pan off and there’s no chunks inside it. Reverse is fine when your in reverse it function properly. The first time I put it In drive after starting it everything works but then if I put it in reverse then drive it’ll act out. The car revs to 3-3500 before moving. I have the pan opened up was going to check the solenoid but not sure exactly how to check it and what property readings are.

[@rajangill2507]

@@GaryFerraro also no lights are on the dash for transmission like limp mode but when I plug it in the codes up above are what come. Fluid was dirty though but not as dirty. But I bought a new filter and oil. Will be changing after

[@Bigbrowndawg]

Hi Gary, Great video. Have some experience engine mechanicals but no experience rebuilding transmissions. I have a '99 passport automatic and it's slipping on 3rd and 4th. Do I need to buy the manual? I saw one at amazon. What would be a good rebuild kit? Is this bmw trans identical to my passport?

[@GaryFerraro]

Carmeli Ri Manual would help. There is a company ATSG They sell manuals and they are very good. I like Transtec kits. Where are you located?

[@albertvillasenor8346]

Gary I have a 1998 BMW 528i. Well my issue with my transmission is that when I put it in drive it'll just rev up and then it'll grab 1st gear hard and it feels like its slipping also once it does grab. It'll shift into 2nd fine but 2nd feels like its slipping also. 3rd and 4th are fine though. Can the bands be the problem or the shift solenoid? How about the transmission filter and oil can that cause it to do that?

[@GaryFerraro]

First thing to do is check fluid level, from what ypour saying it may be low on fluid

[@ernieg1415]

I just found your site and I have a question that I hope you will reply to. I have a 4l30-e automatic transmission that I need to change out the seal right behind the torque converter that has the 3 screws in it when you take the converter out. I am stumped and do not want to mess anything up, plus how do you change the bushing out as well. so that is why I am asking you. Thank you

[@GaryFerraro]

To change the bushing, you have to take the bellhousing off and take the pump apart. Now here is the thing with the pump bushings, it is common for these units to leak from the front because of the pump bushing. When i rebuild this transmission, i do not use the standard pump bushing, i have had transmissions come back on me leaking from the front. There is a company called Sonnax, they make a special pump bushing that has to sanded or honed out to a certain clearance to avoid a leak from the front. I press the bushing in, try it on the converter neck to see how tight it is, then i begin to sand the center until it slides over the neck and i have the clearance inbetween the bushing and converter neck. If you change the bushing look at how the original one is in, i believe there is an open channel and you have to make sure the bushing gets pressed in below the open channel. Gary

[@maxxmorante9535]

I been watching this video since new!!

[@GaryFerraro]

Thank you

[@claudiocisternas2920]

Hi Gary, my brother and I did the rebuild of a 4L30e. Before this, the car was going into "false neutral" when trying to go from 2nd to 3rd. When the engine got close to 3000 rpm in second, it'd flare and then would go into false neutral; after that, it wouldn't engage in any gear unless the speed went down a lot. After driving the car with the electronics disconnected the problems were still there, it was almost obvious to everybody I asked that the problem was mechanical and not electronics related, so we decided to do the rebuild with a deluxe kit (Transtec, Raybestos, Exedy, etc). I trusted my brother with this job because he works everyday assembling and disassembling industrial turbines, pumps, compressors, etc. and has all the tools at home. So the job was done by a pro mechanic, tho without experience on auto trannies. I was there to help and point out things in case he missed something (didn't happened) and we followed all the manuals and videos available. After opening the trans, the internals looked mostly in good shape, except for an obviously damaged reverse clutch fiber plate and some light friction marks between the 2nd and 3rd drums. We tested the drums and working condition of the gears after installing the new clutch packs, seals and stuff. All worked ok, or so we thought... On the first test drive, the trans felt great, smoother than ever, reverse and first engaged perfectly without delaysshift . First to second went great too, but then as I was accelerating very gently hoping to go into 3rd, the car just kept gaining rpms, and then it flared so I let the pedal go. The first time it did this after the rebuild it seemed to me that a metalic noise was felt, but I'm not sure. Two later attempts had the same results, no strange noises at all, only the engine revving up. In winter mode it moved ok but when it should have done the first shift (to 4th?) it did the same false neutral thing. Well, the problem is still there, exactly like before the rebuild. Yesterday I got a new 2-3 solenoid; I'll install it tomorrow with my last hopes of not having to drop the tranny again... Do you have any hint of what could be gone wrong? Iknow we should have looked after the electronics before doing the rebuild, but having 300000 kms on the trans it was something to be done sooner than later. Is there a real possibility of being an electronic issue, considering that the Check Trans light never went on? I did read somewhere that codes are triggered in situations like these only when the gas pedal is pressed during 3 seconds or more when the trans is slipping... We have an scanner like this www.launchcrp.com/products/launch-crp919x but we couldn't get it to connect to the tcm. I want to check all the electronics involved before starting to even think about that second drum... I'd really like to hear comments and suggestions from you, thanks!

[@GaryFerraro]

Did he take the small drum apart that has the sprag? This drum is very hard to get apart, that is 3rd gear

[@claudiocisternas2920]

@@GaryFerraro yes, we even took some pics of it

[@GaryFerraro]

e-mail me [e-mail] i will check them out in the morning.@@claudiocisternas2920

[@claudiocisternas2920]

@@GaryFerraro just read this, I'll send you the pics during the afternoon. Thanks!

[@claudiocisternas2920]

Well, finally replaced the solenoid B and voilà! We should have started from there, tho the tcm never noticed that the solenoid was malfunctioning... The trans works flawlessly, much better than before the rebuild. I hope it will last another 300000 kms 😄

[@JosePerez-fw1zj]

Nice video

[@GaryFerraro]

+Jose Perez Thank You

[@BAMFSpYdy]

Hey Gary, I'm hoping you can answer a question for me. I got a Honda passport recently and it had intermittent shifting issues. I changed the filter and gaskets on both pans. Fluid looked like this 4L30e except not much debris in the pan other than magnet had a little. It shift great from 1 to 3 now but won't stay in 4th above 50 mph. I ordered the 2 shift solenoids to replace them this weekend. Should I replace any other solenoids?

[@GaryFerraro]

What happens in 4th, it falls back to 3rd?

[@BAMFSpYdy]

@@GaryFerraro Yes, and if I shift to 3rd and back to D, it will shift to forth, then back to 3rd.

[@GaryFerraro]

@@BAMFSpYdy What year is this, ? can you hook up a scan tool for live data?

[@BAMFSpYdy]

@@GaryFerraro it's a 2000 with 174000 miles. I had it scanned a couple weeks ago and it didn't show anything. But once when it acted up the check trans light came on and it was banging into 2nd and 3rd gears. The light was out next time I drove it and it shifted normal again. I drove it all day today and it was shifting normal except for 4th gear. That wasn't the case before I changed the Filter and trans fluid. I'll have them run the codes again when I get a chance.

[@BAMFSpYdy]

@@GaryFerraro Also, it hesitates to engage when putting it in Drive.

[@nFlames2]

Thanks for the vid I'm a mech also but never got into auto trans. Had been seeing the trans guys pull them out several times after a build that was back in the 70's & 80's didn't want to be doing that so never got in them. But now with your help & others on utube I thinking i will get into them. Thanks for taking the time & making the vid. I have tried making vids but makes the job over twice as long & I just need to get the job done.

[@GaryFerraro]

nFlames2 Thanks for watching. Any questions just let me know