Why does my 1994 Chevy Cheyenne 2500 not shift from 2nd to 3rd to 4th

Asked by Apr 12, 2015 at 10:53 AM

Question type: Maintenance & Repair

Once it warms up it doesn't shift.

1 Answer

90,975

Pull the codes, sounds like a solenoid problem, work fine cold but get stuck when they warm up. Sometimes a service and adding a can of TransX helps for a while but it is not a cure.

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