what would make a 96 GMC not shift correctly


Asked by Dec 01, 2013 at 07:24 PM about the 1996 GMC Sierra 1500 C1500 SL Standard Cab Stepside SB

Question type: Maintenance & Repair

the truck was shifting fine. Was going to work and motor stared to rev up. i let off the gas it shifted. I stopped killed the motor took off again and for the tranny to shift had to let off the throttle and it would shift.

4 Answers

check the transmission fluid...for leakage at the radiator connection...examine the transmission mounts with a floorjack as these can create geometry problems for the linkage~ https://www.google.com/#q=96+GMC+transmission+mounts&tbm=shop


the tranny fluid level is full I could not find a leak. and the mount looked to be good

1 of 1 people found this helpful.

do these have a vacuum modulator on the shift control?...check to see if any vacuum connections to the transmission are still there~

1 of 1 people found this helpful.

no sir done checked to see if maybe it had vaccum but it does not it has apug at the tail shaft and then one behind the shift cable.

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