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Automotive Transmission Forum

Professional automotive forum for discussion of system analysis, diagnosis, and repair of vehicle transmissions, transaxles, and drivetrains. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Classifieds Forum.

Recent Automotive Discussions in the Automotive Transmission Forum

fluid level check
08/28/2025 in the Transmission Forum
[Transmission: 12 Ford Explorer Limited 2.0L] This is the 6f35 transmission. I had to change a drive axle and lost some fluid. I know it lost about quart plus. I already dumped the pan. Lesson learned, I added a quart, I went to pull the fluid level plug...
Imapala with 2nd geneation TCM flaring on 4th
08/26/2025 in the Transmission Forum
2015 Chevy Impala LTZ 3.6L V6 DOHC FW This is the second time I've encountered a severe 4th gear flare on a vehicle with a second-generation transmission control module (TCM). The usual, time-consuming process of replacing the valve body and reprogramming...
Strengthening and cooling the 6F35
08/21/2025 in the Transmission Forum
We have a Transit Connect with a 6F35. The van has had the transmission rebuilt under warranty twice in 21,000 miles, the cooler was supposedly flushed both times. The van is well under GVWR, but we are in a mountainous area and I suspect it is running pr...
BMW reman trans
08/01/2025 in the Transmission Forum
I am in need of a reman automatic transmission for a 2003 BMW Z3. Many rebuilders have discontinued it. It is a ZF 5HP19. Has anyone used Precision European? I got a quote from them and everything looks fine, but for a business that has been around since ...
GM 8 speed and 10 speed valvebody fixe
07/31/2025 in the Transmission Forum
I had a previous thread about fixing shudder on the 8L90 transmission through fluid service. This has led me down a rabbit hole of finding a trustworthy, permanent solution. I found this company that "claims" that almost all problems with shifting and shu...

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