Transmission problem with my 2002 Pontiac Grand prix gt.. Question = I OWN A 2002 GRAND PRIX NO SUPERCHARGER 3.8 MOTOR AUTO TRANS. I RECENTLY LOST 4TH GEAR NOW IT FEELS LIKE THE TRANNY IS ABOUT TO GO COMPLETELY. I WANT TO REBUILD IT BUT AM UNSURE ABOUT WHAT PARTS I WOULD NEED TO BUY ALONG WITH A REBUILD KIT TO GET ALL THE UPDATED PARTS.
Answer: It would be impossible to say what more parts you would need. No telling what has failed. Removal of the pan can give an indication if there is metal throughout. If so, may be cheaper to get a replacement unit. The final drive may have failed. An overhaul kit from GM will have all updated seals, plates, valve body spacer, etc.
Question: 2000 Pontiac Grand Prix 3800.Question: i am changing transmissions in a 2000 pontiac grand prix and my question is, is it possible to remove the transmission without dropping the a-frame.
Answer: The only way to remove the transmission from your vehicle is to drop the sub frame out of the car. You will need a proper engine support fixture to carry the weight of the engine and transmission once the sub frame is removed, to keep it in place. You'd also have to either remove the steering rack with the sub frame or leave it hang in the car. Just be sure the intermediate shaft does not come off if you lower the frame/rack too much. Ball joints will have to be disconnected, frame bolts, any harnesses and lines connected to the sub frame will have to be removed, etc. Not a difficult job, just lots of odds and ends.
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Question: 2006 Pontiac Grand Prix 3.8Question: on my 2006 grand prix i am having a problem with it shifting in and out of overdrive erratically at speed of 70 and above. It does it with or without the cruise on.i have had the trans flushed.i dont know what step to take next. The car has 70000 miles.
Answer: There could be several reasons for this problem. It would depend on if there is any engine codes being set in the computer with the check engine light on. These can effect transmission operation. If no engine light, there still may trans codes stored as some do not turn on the light. For causes, it could any number of internal problems- Torque converter clutch PMV solenoid, 2-3 shift solenoid, sticking valve in the valvebody, a piston seal that is not seating, etc. Have a trans. Technician drive it first so he can determine for a fact it is internal. It may need to come out and disassemble.