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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

10L80 light shudder after fluid change
07/15/2026 in the Transmission Forum
Did a fluid change (not flush) on a 23 Tahoe with the 10L80 trans. We used an OTC fluid extractor and removed 5 1/2 Q of black fluid. Pan was not removed. Refilled with 6Q of Valvoline ULV ATF. Customer states there may be a slight shudder now. Was there ...
Transmission Fluid Exchange Equipment
07/11/2026 in the Transmission Forum
What are you guys using out there? My attitude about (we'll call them transmission flushes for brevity) transmission flushes, that is, replacing aged transmission fluid with new stuff has shifted over the years. My first introduction to them was at the de...
2015 Explorer PTU Leak?
05/11/2026 in the Transmission Forum
[Transmission: 15 Ford Explorer Limited 3.5L] We dont do much transmission work other than fluid and filter along with occasionally replacing with Jasper. Last August, replaced the transmission on a Ford Explorer (AWD) with a Jasper unit. It is an All Wh...

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