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GM transmission control module (tehcm) pressure switch membrane repair. 6L45/50/80/90 or 6T70
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- Опубліковано 26 лис 2022
- Transmission control module tehcm out of a 2008 GMC Denali with 6.2L 6L80. vehicle was setting pressure switch codes along with shift problems. Pressure switch membranes were all torn
Just copped a new ACDELCO TEHCM & a SONNAX 6L80L valve body with all the updates. $1200+ well invested. Doing a ground-up build for my GMT936 chassis.
The functionality of the car coming down to a piece of transparent plastic circle cutout
I replaced the passage sleeve twice and it’s still leaking from the connector. I have a new TECHM installed as well. At this point I’m tired of dropping the pan to address the sleeve. Plus the pins aren’t loose.
I just got done doing the same thing on mine. 2008 escalade. Vehicle would act fine until it got warmed up all the way. And then I would start having random delay shifting RPMs shoot up but no acceleration and most of the time reverse wouldn't engage. Was hoping replacing these discs in the THECM would fix the issue but it did not. Now I'm wondering what else it could be.....
Well I guess you're not answering comments, but just in case anyone else knows.
I did the repair, but I took all the bolts out by feel and am not sure what sizes go where I have 11 bolts. 5 different sizes. Any help would be greatly appreciated. Thanks.
Wondering if this repair took care of the issues? I have some stored trans codes and have erratic shifting from 1st to 2nd gear.
Great video thanks for posting. Do you have a link on where you got the repair kit and membranes?
Rock auto, it's a full kit
I have a 6L45R transmission in a 2010 E90. My problem is it jerks from 2nd to 3rd gear. Other than that, it's normal to go down from 3 to 2. No fault code The oil is good and not lacking. Can you recommend me?
Mine does the same only when car is cold
Which pressure switch is number 3
What gen is this transmission?
Where you got these tool ? or what is the name of this tool?
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How long does this repair take please?
I just did this recently. It did take care of the harsh 1-2 shift, but I still feel a hard/delay shift from P to D. It took me about two hours for everything ( drain, remove pan, remove TCM, seal fix, etc).
@@kalani1987 Thank you. A mechanic just charged me $610 for this. 5 hours of labor
@@DanaLynnettedid this repair resolve your shift issue?
@@kalani1987 yes, thank God!
@@DanaLynnette I have a 2010 Chevy Silverado LTZ 6l80 with code p0872 transmission, pressure switch C circuit low do you think this will solve the problem? Thanks in advance.