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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

6L80e torque converter failure
11/17/2020 in the Transmission Forum
My step-sons 2014 Silverado 5.3 with 160k miles stopped moving under its own power the other day. Transmission will engage and move for a very short time after turning it off, letting it sit for a couple of minutes, then restarting it. Hooked up gauges an...
4l60e slips in second gear
11/05/2020 in the Transmission Forum
[Transmission: 06 Pontiac GTO 6.0L] Vehicle belongs to a friend and as you know we always have trouble out of freebies. Came in with the uasual burned up 3-4 clutches and broken snap ring on reverse return spring assembly.Overhauled Transmission and All ...
Advice Needed 4l60E Sonnax Accumulator Valve Train Kit
10/30/2020 in the Transmission Forum
[Transmission: 03 GMC Sierra 1500 SLE 5.3L] Sorry for the repeat post. Originally posted on wrong forum. Hey friends. Got my own personal truck here as guinea pig. Recently got this truck tuned for a firmer shift and installed a corvette servo from Orego...
2016 Isuzu NRR gas wont go in gear
10/29/2020 in the Transmission Forum
Truck will not go in gear No codes can see shifter move on scaner, cools of will move until warms up low mileage no burnt fluid . Just started first one i have see like this ,any thoughts?
Identifing this Transmission
10/28/2020 in the Transmission Forum
[Transmission: 56 Ford Thunderbird 5.1L] I need to know what transmission is in this 'Oldie". It is an air cooled automatic. Has been sitting for a few years(4-5) and we got it running, but doesn't seem to make any shifts. Would like to get a pan gasket ...

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