Transmission Solenoid Testing (Ohms Law) - Transmission Repair

[@208miuwu]

Again I am learning so much I appreciate you taking the time to set up a camera and show the people watching these videos. Your profession is very costly and these videos could possible save a viewer a lot of money going to a shop who may take advantage of them..

[@MontyMontemayor]

I learned something good today, never trust a guy with a fancy equipment, trust them how they troubleshoot. this video is a demo of ohms law, but not for troubleshooting if a solenoid is really faulty or out of specs.

[@mike-yp1uk]

try o scoping the solenoid with the low amp clamp while energizing you will see a nice even sort of ramping and there will be a little bump as the pintle moves and stops called a pintle hump. if it start with a jump staight up and stars to angle, its on its way out. another scanner danner trick i learned. no pintle hump shows stuck pintle and air should flow through it when open. try it you will like it.

[@ervinmq1955]

Very intuitive video dude.... it's the perfect way to bench test transmission solenoids... Thanks....

[@tomluque]

When confirming OHMs Law you need to account for voltage loss across your test leads while under a load and that the power supply may drop when under a load. You should read the voltage at the solenoid when energized, then the current. Then the math would be more accurate. I like to hear a quick & firm click to know that solenoid is not stuck. FYI: note that items that have winding's will produce a higher voltage kick-back when power is removed. This is why you will always see a diode next to a relay. You can see spike with an oscilloscope.

[@FreeRoberto7891]

Thanks for the info. Is it possible my transmission solenoid is gummed up and not working properly and yet still make the click noise as you have described?

[@zoolu6879]

This is very helpful. Thank you so much for sharing your knowledge. More people need to do this. Keep 'em coming man.

[@dmorley100]

Well Hiram, looks like you've found a new direction to take your videos. I like it. By all means, please continue to do your tear down and rebuild videos when time permits for you, but I'd like to see more theory/basic training videos like this. You could also take this a step further and do some videos like this one, but for hydraulics. I'd like to see one on how to read and understand an oil circuit diagram myself. Keep up the good work.

[@mohammad45h]

سلام سپاس وتشکر بینهایت.👍...👍....جناب مهندس لطف کنین همین ویدیو را با وضوح کاملتر و نحوه اتصالات رو دقیق تر با نقشه ودیاگرام اجرا نمایید ..ممنون و هزاران 👍.......

[@mariaelenagamboa9214]

Hola Hiram! Recibe un cordial saludo desde Venezuela! Mi pregunta es la siguiente: ¿Como se puede probar los Solenoides de la Transmisión A604?

[@mike-yp1uk]

i like watching your work.you explain what your doing and it helps us to understand better.thanks

[@pgiuff]

mike rega n

[@matermark]

Is there any way to test 4l60e solenoids without dropping the pan? I recently started slipping from 2 to 3 and I either need to feather the gas pedal or drive in 2nd beyond the desired speed and shift into 3 or OD & feather it... at about 45 MPH I'm at about 2800 in 2, or 3400 in 3!

[@RC-Heli835]

Hey Amigo! How important is it to be careful of reverse polarity when powering up and testing solenoids. My AX4S solenoids are all out of the transmission and have no positive or negative reference, only a plug with two pins. The ATSG Manual says if you reverse connect it can damage the diode inside the solenoids.

[@DJDevon3]

Your video description was cut off. So just O?

[@pnswg01]

To explain what he is testing here. Current is proportional to voltage and inversely proportional to resistance. If voltage goes up, so does current. If resistance goes down, current goes up, if it goes up current goes down. When voltage is applied to a solenoid, an instantaneous high current is developed in the coil. This current continues to decrease to normal current levels as the plunger closes. (This is the same effect that cause motors to have instantaneous torque at startup) If for some reason the plunger stuck before it closes, that same high current will continue and eventually overheat and burn out the coil. In normal testing, if the solenoid is good, the ammeter will not detect the extra high current, you should read the normal current flow calculated if the plunger is not stuck. Will this testing tell if the solenoid is good in all cases NO! Resistance is the master. What if the coil have abnormal resistance...for example poor bonding to the ground casing where you connect your negative lead in the video. Guess what you would read a higher resistance and measured a current that reflect that. At this point the solenoid will more likely close slower and loses its strength/force. Know what resistance reading to expect and start from there.

[@tpowell453]

OMG - a student is brain dumping on us! Everyone - run for your lives! lol Asperger's strikes again.

[@pnswg01]

+Ima SuperPerson Alsperger strikes again? How did you come up with that name "Ima SuperPerson"? I guess you are saying only students know the facts. Really? I am an Electronics Engineer. When one says they are an Engineer and don't mention the type, It usually only mean one thing. Your comment is of no help to anyone and pointless.

[@tpowell453]

Patrick Neil - It was a joke ya know. When people start talking over other people's heads, using 3 dollar words, etc. That's my joke about Asperger's. It's funny if you look it up. Unless you have it. lol

[@Almeshtages3]

GREAT HIRAM ... FRIEND HIRAM can we see anew video for rebuild 6l80e valve body with check solenoid . THANKS

[@williamgibson1951]

what cause a shift solenoid to over hot also won't moved in drive and reverse new oil clean ;this vehicle is 1998 Mitsubishi 4g64 space wagon GDI.

[@nassermotamed8378]

I did everything as you said except the adaptation because I have VCDS for VW and for that one(VW transporter with 09K) , it does not have adaptation , I mean that is not getting on , that is off so it does not let me to do that by VCDS . any how I am going to take VAS from one of my friends to perform the adaptation to see what is going on after that. thanks a lot again for your concern and I will let you know later,,,,,,,,,,,,,,Mr. Hiram .........do you have any information for MB transmission as Americans as you have? thanks and thanks a lot.

[@prasadwarnakulasuriya163]

I have 2000 honda odyssey 3.0 engine 5A trans had and have problem with trans P1773 car no moving.. Catch prasure control solenoid B is good .. In side trans clutchs and pistons good no burns no leaking.. What u can give me to advise about that conditions please

[@DJDevon3]

Video only available in 240p?

[@hemidude4562]

Would like to see you rebuild a BGRA

[@normantremblay6462]

Hey Hiram, Great videos!! How do we know if the solenoid is leaking fluid or not once it's in the transmission even if it shows good on the beanch/car?

[@troygrant5418]

good point

[@robertbayliss5024]

Thank you. Thank you. Thank you. Your videos are awesome and greatly appreciated.

[@timwest9300]

Great video brother thank you for your time. God bless

[@chrisbrillantes310]

Dear Sir:May I request assistance from you. I have a 2005 Dodge Sprinter 2500 diesel passenger van. I have removed the transmission valve body. There is a total of six (6) solenoids attached to the Electro-conductor plate. May I request guidance from you.Thank you.

[@dxta7360]

What's d brand of that meter you're using? Looks cool

[@dougjstl1]

Can you do that on the transmission before you take it out can you show us how to do it while the transmission still in the engine connected to the engine under the hood

[@psicopatalucifer]

Thank You for Sharing Your Knowledge Hiram .!!!!!!!!!!!!!!!!!!!!!

[@gregorysmullen8589]

My Ford 2004 Ford Expedition will not go into reverse just out and all the other gears

[@deeperlayer]

actually you are not right, the amperage will always match what you calculated even if the solenoid is bad, so you cant know nothing from this test. actually to test a solenoid you need to know the resistance of a good one lets say its 10 ohms and test the other solenoids if the resistance is close then its good if its not then its bad. and as i said before when your testing the resistance any problem in the coils will be represented by the resistance measurement so your Amperage calculation will show the amperage of the current state of the solenoid even if its bad or good and the real amperage test will show the same number because its Ohms law, hope its more clear now

[@mrOnlinePolice]

i watched this video and thought the same thing.

[@jamesmay2343]

i dont understand

[@tonyiker1]

@@jamesmay2343 in the video, he's calculating the current state of the solenoid regardless if it's a bad or good solenoid.

[@BigThumpSC]

I've seen other people claim to check these parts simply by putting voltage to this and the other valve and listening for that clicking sound. So that's not a clear way to know if these parts are properly working correctly? Thanks

[@amateurcarpist5474]

My epc solenoid's resistance is supposed to be between 2.7-7.3 ohms. When I check the line pressure/electronic pressure control solenoid's amperage with forscan, it varies between 0.50-0.90 amps. According to ohms law at 12 volts, its current resistance is 24-13.3 ohms. I could not check the actual resistance of it with an avometer yet, as it is in the tranny. No DTCs but harsh 1-2 shift when the tranny is cold & poor mileage.

[@Cotronixco]

Engineer here. This is fine, but you are only testing the coil for conductivity, not the proper actuation of the solenoid. Also, always check your supply voltage under load, not while it's floating. And the corrosion test depends on the resistance of the test light vs. the solenoid coil, and all test lights are certainly not the same. I'm assuming you are simply familiar with yours and it has worked for you so have at it. Also, the term for the inverse of inductive conductivity is not resistance but impedance. Inductive loads draw higher current at startup, then settle, so an initial resistance test is not exactly accurate, but can still suffice at times. Otherwise, great job.

[@spinroyd]

I would apply heat gun while performing this test. I had a torque converter clutch solenoid fail only after it got hot

[@6824096]

Is it possible , for honda, that a bad torque convertor lockup solenoid does not work properly but still does not set a check engine light?

[@Smalltownthrifts]

6824096 Hey i've seen you before :D Wanting to know the samething actually

[@Rogerrgb]

Hi Hiram I have a 1997 e320 mercedes shifter solenoid I did the test as you advice with a battery charger 13.774 volt 6 Amps the solenoid Ohms are 27.63 divided = is 0.49851610568 Amps, but mi solenoid is reading 0.4.01 Amps if I do more than one test t's reads 3.89 Amps do you think is normal or the solenoid is not good? please I will appreciate your help, great video thank you !!

[@Mrinfoone]

hi i change both linier and lock up silenoids after getting codes on my 2000 honda odyssey. Now it shifts fine...but now my transmission doesn't reverse. Do you know whats causing it?

[@gabysalgado156]

hello Hiram, i need your help pls, i do have a 2004 honda accord 4cyl, 2.4L, engine light is on, the code is P0962 pressure control solenoid A control circuit low, how can i fix this problem? i want check the resistance, but i only have a multimeter, that might work?

[@ismailgabran8534]

FROM Libya I have big problem (p0067) kia sedona 2007 I need to help me.

[@felixteresa7584]

Great video Do you take the voltage and divided? V÷ohm or ohm÷v

[@nassermotamed8378]

thanks again Hirman,,,,,,,,,,,,,,,you are the best.

[@josephmaninang7141]

Hi! If it's a faulty one, will this be responsible if I'm having delays in my reverse? Honda civic VTi 96.

[@dablubaylor4658]

Hi Hiram - where you located ? If you are nearby, may be I can have you look at my car and get a proper diagnosis -thanks

[@grzegorz16100]

How much would the resistance be if the solenoid is bad? 100? 1000 ohms? Any idea?

[@treydaypnw]

+Hiram Gutierrez great videos man hey I have a question, I tested the Shift solenoid I got from a salvage yard and last night I tested it and ohms were 15 and 16 on each Pin. well the next morning after it say I'm garage overnight the resistance was 22 and 14, it changed. is that weird or normal??

[@guadalupegutierrez3890]

saludos yo soy Gutierrez también soy de Monterrey nuevo león México.hablas español?

[@lakisbouz]

hi Hiram Gutierrez ok you seem to know what you are doing as far as electrics and transmissions go and was wondering if you could help me. i have a subaru forester x 2006 automatic transmission that has an electrical buzzing sound coming from the transmission with the car not running. so as i go through the gear shifting there is buzzing in ALL gears and louder when shifted to first gear. the buzzing goes away in park and neutral. again the car is stationary and the motor not running. please help. oh forgot to say , the car shifts perfect and drives great... just this noise which is driving me CRAZY!!

[@muneerlibya462]

HELLO, please can you help me, i have cvt transmission for nissan micra, it is no speed. how to fill it air ( because didn't has air ) part number N6-TB40NRF1AA. Thank you for your cooperation.

[@thetabascomex1]

Thank you my friend for share your experience with us great video you are the best..

[@pacheco464]

The singles one brown and the other black what function do on transmission.

[@miteeman]

This is an excellent demo of Ohm's law but I don't see a good demo of how to detect a failed solenoid. You showed the good solenoid, but the last restricted solenoid still didn't show any difference in Ohm's law. The only difference you showed was by putting a test light in series to simulate corrosion which would result in a totally different resistance and so this isn't showing a failure of ohm's law or a bad solenoid. I think what you're trying to show is that under some failure conditions the resistance changes under load and then the current is unexpectedly different from ohm's law. I'd love to see that on an actual solenoid with a real failure. Unfortunately that's not what you're showing. It would be nice to see a much shorter video with an actual solenoid that shows the nonlinearity.

[@MontyMontemayor]

MITEEman . exactly my thoughts as well. he is just showing how ohms law works, instead of trully diagnosing a faulty solenoid . he should have check what's the manufacturer's spec for that solenoid (ohms) instead and validate it. but none of that. I could have given this guy a faulty solenoid and he won't be able to tell if it's faulty because he didn't really check it against specs. he will just use ohms law and say it is good because it clicks, and also because ohms law checked out ok, which will always be the case. Good equipment though but bad troubleshooting process. will not go to this mechanic.

[@wtf79779]

men your are some wizard that was great thanks now i have a lot of knowledge to fix my gearbox men MERRY CHRISTMAS

[@aaronhammond9029]

I am going to rebuild a Honda b7xa that has been burnt badly.fluid looks like motor oil. is there any thing in particular I need to do? And where is the lineor silonoid how do I test it?

[@drewwhitaker70]

I had a mechanic that's ase cert tell me that u can use 10w 30 motor oil as a replacement for Honda oil in this type trans , as I had the same thing. He's a second gen mechanic and works at one of the local precision tunes in the service bays doing whatever they need him. He's been a great help not only on my 2000 Accord but my two other previous Honda's I've owned so maybe check on that... May not be the problem

[@johnpratt4787]

WE HAVE A 06 FORD FREESTAR IT WON'T MOVE IN DRIVE OR IN REVERSE NEED HELP PLEASE

[@williamgibson1951]

how do I remove transmission from 1998 Mitsubishi 4g64 space wagon all wheel drive.

[@CubasAutomotive]

Can any solenoid, on any trans that you've come across, be tested this way without damage? I ask this in comparison to many computerized circuit testing, you must be careful not to feed 12v, or use the LED tester vs incandescent. I hope I explained my question enough.

[@CubasAutomotive]

+Hiram Gutierrez yeah, they went out of biz here too... I don't know where to get the "hobby" items or small electronic parts like capacitors anymore :( Thanks. I did figure the solenoids had to be disconnected from vehicle at least. I wanted to make sure the solenoids weren't affected themselves & short something once plugged in. Very helpful as usual! Thanks again.

[@CubasAutomotive]

+Hiram Gutierrez I just want to be clear also on power source. Should only power supplies be used? Maybe up to 12 or 15 amps. Is a jump box/pack too high in amps for the bench testing or not "controlled" enough?

[@MNBT-jq9lv]

how much easier would it be to have a pig tail to use for connector? would the test show different?

[@ElReginator]

What if the solenoid doesn't make that clicking sound?

[@ElReginator]

Ok, I'm working on a Nissan Re4f04b. The solenoids are a bit pricey. I'll try that, thanks.

[@victortorres8472]

Porque mi Honda Odyssey el compresor del aire acondicionado se queda prendido i no apaga año 2002 gracias sí alguien me puede ayudar gracias

[@carsrcool7149]

Great vid !

[@spikeman474]

What if the solenoid I test has a higher amperage Than I calculated

[@ProfessionalDad]

cant you just hit it with 12v and check for click?

[@dxta7360]

Bad solenoids in some cases also have clicks. Don't only rely on clicks. Go farther

[@ProfessionalDad]

@@dxta7360 especially hydraulic solenoids that were good, but dont respond to 12v

[@nassermotamed8378]

how can I be in touch with you by e-mail or ........? and 09K , I did whatever you said for valve body plus overall repair but that is bumping in 2nd gear when that is warm ,I mean as long as not reaching to normal temperature is ok. of course I watched your clip for 09G anyhow that is same. thanks a lot for your reply to my question.

[@marjoleingrootnibbelink7626]

Great! Thank you so much!

[@johanguwop6018]

Honda Civic 2000 lx D4 Problem everything works but it won't run on d4 while it runs on 1,2 and D3. Anyone encounter a similar problem? Appreciate if you leave a comment on how to improve my car.

[@everthmenjivar5878]

Where is your shap...i need fix my car i live in austin tx

[@nassermotamed8378]

I have been rebuilding all type of transmission for more than 35 years ,,,,,,but now I am stuck in some 09K VW transmission ,,,,,,,,,,,,,,,please help me....................thanks

[@stevencogar7393]

2004 HONDA CIVIC P2770 CODE NO POWER AT HARNESS SOLENOID IS WORKING.

[@oscarcrespo4637]

How do you do that with a voltmeter?? interesting. thank you very much.

[@jtdehoyos]

Where can i get a meter like that one?

[@AutomaticTransmission]

Snapon tools

[@maretin58boobhat]

i have a 1996 ford ranger 2.3 TRANSMISSION 4R44E obd code P0761 SOLENOID C OFF THIS STARTER A COUPLE DAYS AFTER GETTING THE TRANS FLUSHED well can you give me options to follow

[@davealm7640]

Not everybody has that scanner

[@mytouch551]

Hey how's it going. I have a p0780 cvt valve stuck on a 2002 honda accord ex 3.0. I checked ohms on the dual linear solenoid. I was wondering if the two linear solenoid suppose to be closed when no power Is applied. I can put fluid in the middle hole and the one solenoid seems to be open where the fluid over flows into on one solenoid. Is that normal or are they both suppose to be closed

[@waiting4aliens]

Thank you.

[@renemartinez628]

Hiram Gutierrez, como the busco en facebook?

[@MrPapasmurf1961]

my oms are saying 14.7 each is that good

[@tracycolorado]

you are the man , thanks

[@amanorebenezer1704]

nice making this video keep it up bro.

[@АнтонКарманов-я6э]

можно узнать что за инструмент????

[@raymakaveli]

DC or AC on the multimetre?

[@alexhus44]

+Ray Lee Would be DC as it works off Direct current

[@raymakaveli]

thanks Alex. would the polarity matter ?

[@alexhus44]

+Ray Lee if you look around 5:50 you can see he's getting - so no not really

[@matutenoel4833]

good video amigo exselente video

[@tpowell453]

And BTW - a simple multimeter can be had at Ace Hardware, or wherever - for about 20 bucks. Not exactly high-dollar scientific equipment anymore. Just keep it simple and stop trying to make this more complicated than it is. The average person can measure resistance and voltage with a cheap multimeter. No problemo.

[@rogelioesquivel5315]

how do you check 09g

[@mahmadzf4172]

a

[@CHIBA280CRV]

Fantastic thanks.

[@thomasslawinski15]

No Lockup 48re

[@gradytatum7415]

Takes to long to explain the problems.

[@mdbadalmiah6808]

thank you sir

[@According_to_Baylen]

Chingón!

[@helalbouhasson3696]

Thanks bro🤓👍🏼

[@sivucit]

I really dont think this is right way to test solenoid u should scope the current ramp of solenoid wave form to diagnose the good and bad solenoid, and u r scope have the facility to do that..

[@nodariel]

An LCR bridge would be better

[@sivucit]

***** Just to let you know i am big fan of your videos. My 2 cents. Ohm measurement without load is not always correct so the calculation you do without load and matching it with load might not work. The best way to capture the current wave form is to capture good working solenoid and see if the same pattern is achieved. A sudden raise of wave form indicates it is shorted solenoid..

[@tpowell453]

Instead of "Ohm's Law" - you should just say resistance. Ohm's Law is reserved for geeks and engineers, like myself. Thank you.

[@aktharkhan3294]

Dear sir. .I want knowledge for repair auto transmission

[@stephenmodesto-cuyong2340]

tnx vedio

[@stevenburtchaell4338]

Appreciate your videos. Thank you. You are definitely an expert and hoping you might help us please. Do you have any idea why our 1990 Honda Accord Auto Transmission does not shift into reverse sometimes and makes the funny clicking sound? Other times we start it and it shifts into reverse perfectly. We've flushed the AT and put the Honda fluid, check the solenoids and cleaned the small screens. Here is a video of the sound.. Thank you very much. kzbin.info/www/bejne/m33Zk6F5oK1sr5Y

[@nanangbirman7968]

Diagram AT send the inbox email me

[@MrGoogelaar]

What a waste of time, this tests will not tell you anything. If for some reason that the solenoid's resistance is lower or higher the amps will always match the amp reading so to test the amps will tell you absolutely nothing about the condition of the solenoid. If the solenoid drew 9 A (6:36) then the resistance would have been a lot lower and if the resistance was a lot higher the amps would be a lot lower, if you don't have the specs of what the resistance or amps must be you are wasting your time with this tests. Not sure what the guy in the video is trying to achieve but he obviously has very little logic.

[@hussainkassim9781]

Little slower would have been the best. Remember you teaching. You using 2 devise. Power supply and meter. I can’t follow your testing.

[@PappuDass-ts6wn]

pappu dass