Transmission leak - Front seal ? or torque converter ? CHECK THIS OUT ! before you install

Always check your Torque converter before you install because you could have other problems that you would not expect so this video shows you how to pressure test your torque converter

[@olblu8746]

Very good info, this is the first time l've ever heard about this type of leak. My truck has a leak , and at first l thought it was the engine rear crank seal cause the oil was black. But after 6 mos. my engine oil is still at same level. l was thinking the front trans. seal is bad cause trans fluid gets low often. Now... I'll be looking at the torque converter. But why is fluid black? Is it overheating? You are the first mech to ever mention this type of leak. And l worked alongside auto mechanics for over 30 years. If l ever had to have my 69 f-100 trans. Worked on, you would be the one l'd go to. God bless.

[@Preppybestieboos123]

I had a customer with a 1967 Corvair that had a transmission fluid leak. I figured it was the pump seal on the transmission. As I was unbolting the torque from the flywheel to remove engine I saw a drip from the converter.I found a pin hole in the weld that held the halves of converter together. I turned the converter so that fluid was not dripping and got my old Lincoln welder out and touched up the weld and no more leak. I charged the lady $20 to fix it and she was very happy about that. That is the only time I have ever seen that in all the years I have been working on cars.

[@jrs89lxzamora88]

Yup you know your stuff buddy I thank you for your knowledge any information keep up the good work have a good day.

[@kaloosh2639]

this video did extremely help, very much thank you for posting/uploading/making this educational video well worth being on youtube,note to self:leak test🌊✌

[@felixakerele3866]

Thank you for the information, I have change seal more than 10x

[@danielkenner3923]

You probably just saved me hours of work. Thank you. I am about to pull apart a Honda Civic transmission to check it the torque converter is busted since my car no longer runs and threw a bunch of transmission codes.

[@toodle171]

Thank you!!! Was about to put in a rebuilt and didn't know anything about how to look into leaks.

[@altonrowell7854]

Great advice. I didn't know that.

[@panchogonzales6409]

You are a genius! Thank you so much!

[@Isaac-47517]

4l60e 95 sierra losing 2 qts + per day, only when driving, whats the most likely culprit?

[@fallofthezombies1379]

What was it?

[@Isaac-47517]

@@fallofthezombies1379 torque converter leaks . so when cold it reads way overfull and when hot , well under. TC is a pump, while spinning it continually holds like half the total fluid .

[@robertmccully2792]

Good video, never saw a torque converter come with a rubber cap..

[@Doitforyoself]

Hoping you can help.... I have a 2007 5.9 liter dodge diesel with 76k miles on it, and when dropping the trans fluid from the pan and replacing it it levels out to about 5 quarts or so. However, when leaving my truck parked for an extended period of time, say two to three weeks the trans dipstick goes from just enough trans fluid to way above the hashmark max setting. Say about 1.5 quarts or so. Could be a tad less. This is only happens when the truck is sitting for an extended period of time. I've been told that one will get some additional transmission fluid in the pan from things like the torque converter etc when sitting but it just doesn't make sense. Now, when I drive it, it drives fine then when I check the trans fluid at around 160 degrees F it doesn't even read on the stick. I then read somewhere that the trans fluid needs to reach about 180 degrees before you check the trans fluid in neutral for that make and model. At this point, I simply don't know if the amount of trans fluid is correct or not or if there is additional trans fluid which does drop into my existing pan is normal. thanks.

[@codemansauto208]

Dodge has the worst converter for drain back, the torque converter can easily drain back into the pan thru the pump up to 2 qts also Dodge had a drain back one way ball check in their lines if this has been removed the cooler can also drain back sometimes even causing a weak reverse gear or drive gear on take off I hope this helps

[@Doitforyoself]

@@codemansauto208 Thank you for this.

[@sinegra30]

Thank you!

[@black_pj]

So , I have an excessive transmission fluid leak that is irritating me! When I'm adding fluid in the transmission while idling , all fluid leaks , therefore I can't drive the truck. My assumption is the torque converter, because I don't believe the seal would leak this bad! My truck is a 1996 F-150 xl 2wd. Where I live , this truck has no shop for spare parts at all and it's not common in this country. So, I found 95 f-150 took the entire transmission wit' converter for 80 bucks and the converter and pump looks brand new but rear seal is leaking bad!! I don't know what to do, my mind is agitated. It's my only one car that family uses too. I had one issue before with the transmission.. when I shift to "Drive" to is as if the car is always happy, soon as I shift "Reverse" it shuts off! I went to couple mechanic questioning the possible issues and they said it's the torque converter.. what do you think ?

[@robdiaz6543]

Just did this test and yup it was the torque converter and I swear I was just going replace the seal on the 13’ camaro transmission, I bought a rubber seal cap with clamp from homedepot plumbing section, my cousin who is mechanic said I was crazy but said he would of walked away if he hadn’t did the test n had to redo on pulling it

[@JohnSmith-vt5ry]

Need Advice - are there any gaskets and seals that could be revitalized by using stop leak? Ex AT 205, other? Any feedback?

[@PatB-xy1hd]

Excellent video, thanx for the heads up 👍

[@jamesmahle1259]

Amen

[@oklahomacrabber]

Nice! Thanks

[@chukchee]

Very nice.

[@WeViral2021]

Great video thank you

[@chadsmall9447]

Brilliant tip mate thank you

[@michaelmcgregor2533]

My TH350 or TH400 on my 75 Olds has a massive leak between the transmission and the torque converter. I did this test just like you showed in the video, and the welds seem to be fine on the torque converter. The seal doesn't "look blown" to me. My one question is this: can the front seal blow out and loose fluid extremely fast, but still appear to be okay? I thought it was going to appear broken or blasted apart based on how fast the fluid leaks out. It will basically drain the whole tranny to near empty in about 1 minute. Then the car stops moving. Thanks for any info!

[@condarisergio1753]

Did you find the leak?my toyota have same problem

[@michaelmcgregor2533]

@@condarisergio1753 Maybe. It's definitely not coming out of the torque converter. But when I removed the old seal, I noticed that the very small bearing or thin bushing that goes around the torque converter was slid out and is touching the seal. I don't know what to call this bushing looking thing, but I believe it is responsible for causing the massive leak around the seal since it appears to have hit the seal. I can push it back it, but I'm worried it will simply slide back out over time and cause a leak again. I'm going to show it to a tranny guy this week.

[@codemansauto208]

If the bushing slides forward against the front seal it will do exactly what your explaining look at the seal and make sure there is a gap between the front seal and the bushing this gap is for drain back for what fluid makes it past the bushing

[@jamessturgill9168]

Can I put the pump bushing in over the shaft without removing the pump

[@codemansauto208]

I have never did this but have known guys to get by with it Just be careful it is a lot of work

[@Coopdeville0624]

Mine keeps blowing out the seal but not until it gets hot. It’s the 4r75e transmission and it was rebuilt and worked good for almost a year. It’s happened 2 times and both times the transmission was overfilled. Second time it was overfilled it was from the place who put the seal back in after the first time.

[@codemansauto208]

two things are happening either your torque converter is getting hot and blowing the seal or no one is replacing the bushing, also if your pull this transmission make sure both dial pins are in the engine we have a video that explains this

[@hensleyholder3266]

Hi bro. I have this problem with transmission oil leaking through by the starter and bell housing after replacing new oil pump and seal, input shaft sealing ring and bushing on 2015 Dodge grand caravan 62te transmission but it is hard to diagnose the problems. Is there any solution to fix the issue?

[@Malthanis]

I’m going through this too. Ever find out a fix?

[@conwayconway2177]

Damn.. thanks

[@SynixCS]

Vq35de. Only leaks when car is on. What is the most likely cause?

[@rickybailey7123]

That was something I've never thought about doing that leak would drive u crazy and that easy to check thanks for up loading bud and please load anything else u can think of that will drive a working man to drinking °

[@erickrosito3659]

Great idea

[@meldemanuel4231]

Thank you

[@christopherpeterson1400]

How do you check the stator ?

[@daniloespiritu6072]

Thank you Sir its a good video

[@vbidou17]

Thanks for the trick

[@mdkzztop]

My 700r4 had the right 2 lower bolts come loose and was making a awful noise. after I tightened them up the transmission started leaking from the torque converter. Is the seal just bad or do you think the bushing or torque converter could be messed up?

[@codemansauto208]

yes, you will need to check all three your bushing, seal and torque converter because your converter was probably touching your bushing

[@mdkzztop]

Just pulled transmission out and the torque converter as well as bushing are toast!

[@mdkzztop]

Yea the bushing was tore up as well as the torque converter snout, and when i knocked out the bushing in the front of the pump it knocked a chunk out of the case. So a pump rebuild is in the works!

[@maneyndengunogueira9705]

Thank you so much

[@Israel-mz1oe]

How much does it cost for a job like this

[@kaseygarcia]

I added transmission fluid to my truck but my dipstick is dry like there none in there there is no leaks anywhere any clues?

[@codemansauto208]

check the tube the dipstick is in to make sure its not rusted because i have seen the stick go outside of the tube instead of into the transmission? just a possibility ?? something to check

[@raulbass8792]

thanks ...

[@craigquann]

I would hope the welds aren't that fragile... that's a high stress point.

[@OldSchoolNoe]

woah, unexpected!

[@grgrgrgrgrg100]

Thanks for the video I'm a young kid that doesn't know fuck all About automatic transmission and now I Know how to test a torconverter

[@jimmyconn7314]

Ty sir for an easy leak test for the converter these yahoo's down here charge 150 bucks for that test ,ty

[@peterfalken2498]

My IS300 is leaking around the bell housing, where torque converter links to flex plate.

[@leemp337]

should the outside surface of the torque converter hub that goes into the tranny be really smooth? mine has a layer of surface rust on some spots from sitting under a carport. also some light pitting. should i just use fine sand paper to sand down the parts with the surface rust? will the very small pitting affect anything?

[@squarebodymob]

I’m leaking tranny fluid from the small hole in the tranny/flywheel cover..any thoughts on that?

[@alexguevara647]

We’re u able to figure it out

[@christinemolinelli1370]

Please help I have no where to turn I keep putting transmission fluid in my 2003 pontiac bonneville SSEI every week I lose a quart so far 10 quarts no leaks anywhere even under load engine oil good and level no smoke from exhaust and radiator clean where else can that fluid go thanks

[@codemansauto208]

the only place that I can think of is your lines, I have seen lines drip slowly as you are driving and escape being detected, the reason you cant see it is because it is only leaking when running

[@TvTipz]

Would stop leak fix this problem

[@TheProsparity]

👍

[@itsazip1215]

Chill out with cody !!

[@JosephMapanda-y2g]

Hi am also the some problem from my ford ranger 2019 model it has leaking the transmission oil from the gear box,,we have tried to change the top convert and the sear still,,the problem is still existing. I don't know what could be the problem please advise.

[@codemansauto208]

your transmission torque converter has a bushing behind the seal in the pump make sure that your bushing is good or the seal will just keep leaking,, hope this helps you