1996 GMC Sierra "cause idle drop shifting drive" Questions

...cause of suddenly loosing overdrive, reverse, and hard shifting on 1993 700R4 transmission? Suddenly lost reverse, and when i put in drive the shift points can only be obtained through excessive use ...

...cause this to happen? No movement in any gear: pump failure, or total loss of fluid. R&R, or refill pan and find the leak. If out of fluid, avoid running the engine until the trans is refilled to ...

idle drops down there's your problem. the part number on my 90's was 04288256 but it costs like 236 bucks cause its a vintage part. its so hard to find used parts for these trucks. Good luck hope this

What could the possible cause be? check fluid level, make sure proper fluid is in transmission otherwise take to trans shop to diagnse if level and type is correct(check at idle normal operating temp

cause the computer to loose its learned idle settings and bring up these sort of issues. The idle should relearn itself in this situation after a few days, but sometimes requires resetting properly. A

idle and drive OK but won't upshift on its own. I can manually upshift to 2nd and Drive but it won't downshift as the truck slows down, just kills the motor like the bands are letting go of the drums.

cause many problems, the first step is to make sure the coolant is full so check radiator, this is done when cold, if full then start the engine with a meter on the battery and watch the voltage, have

cause the RPM to increase for no apparent reason and eventually drop back to normal idle. This vehicle requires pumping the gas pedal in order to get it started,plus when driving it rev's very

...idle drops below 1 and kinda of sounds like a choking and car shuts off, but when i quickly shift to Drive (Automatic Tranny), the car will then stay on. I tried replacing the Shift Solenoid, but it ...

...when I come to a complete stop. What would be the cause of this? Could be bad TPS sensor (RPM) It would hurt to try and clean out your throttle body and the idle air control valve while you are at