Question about 1991 Chevrolet C2500
Old trans did same thing put good used trans new does same thing replaced speed sensors, cleaned plug, differnt comp.gage clustter replaced looked at harness trans will only drive in second gear if u reset comp. and then it will start out in 1st and slam second and then goes in to limp moded and wont shift have had computer hooked up to it and it doesnt show any thing wrong with it. i am at total loss what do u think
Many transmission shops have a "flight recorder" that they can attach to the system and drive the vehicle. If that has not been done perhaps it will help. Odds of getting another transmission with the exact problem as the original are pretty slim, so I'd tend to think its on the control side. Have you checked the MAP sensor? often the shift module gets its info from there too.
Posted on Jul 22, 2009
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Posted on Jan 02, 2017
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