Topic: Transmission not engaging when hot!
in Forum: C3 Driveline Components
I have a 77 with original trans and shift kit. The car shifts great when cruising around town and when it gets to normal operating temp. Now, I noticed when I take it on highway for extended periods of time and when I really accelerate and rpms are up, the trans almost feels like it comes out of drive into neautral. When I slow down it while then engage again but there is no loud noises or anything. I thought it was because I needed new trans fluid so I had it changed with fresh. The problem still exists. Does anyone have any thoughts or ideas about this problem? Thanks!
Could be the clutch discs on thier way out. If Joel (Adam's Apple) does not come on with an answer try to PM him, he's the trans man around here.
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Joel Adams
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The color of the trans fluid was nice and red and did not smell burnt at all. I thought initially that the fluid was old and was breaking down, thus having the fluid changed. I have noticed my problem when I am really driving the car "hard" on the highway (repetitive hard acceleration and high rpms at speeds of around 80 mph.) When the car is not being driven "hard" around town, the trans works perfectly. Also, when I am at consistent speed on highway at about 60-65 mph for a period of time, the problem does not exist. Again, only when I drive the car "hard" for awhile and really bury the accelerator.

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