99 grand prix gtp rpms bounce up and down when it shifts in overdrive, finally got a check engine light and reads mass air flow sensor low volume. I was thinking more of transmission clutch solenoid?

99 grand prix gtp rpms bounce up and down when it shifts in overdrive, finally got a check engine light and reads mass air flow sensor low volume. I was thinking more of transmission clutch solenoid? 1 Answer

My 1999 grand prix gtp hesitates on acceleration when boost guage kicks in i replaced plugs and plug wires and the mass air flow sensor also cleaned the throttle body out its throwing multiple misfire 5 Answers

my 1999 Pontiac grand prix gtp is running poorly when boost kicks in...it throws multiple misfire codes and nothing else..i replaced the plugs and wires with iridium plugs and mid grade wires also rep...

ive got an issue with my car. i have a 2000 Pontiac Grand Prix GTP. on Thursday I preformed an engine degrease and sense then my fans won't run, my car uses more gas then it should (and by that i mean when i tap my gas peddel i go up to 3000 RPM and slowly drop back down), and my engine temperature gauge only goes up. it used to bounce around Ive narrowed that last one down to the Thermostats. despite whats going on if i unplug my engine temperature sensor it the fans and the gas work normal again. Ive already replaced the sensor so im up for any suggestions. 2 Answers

ive got an issue with my car. i have a 2000 Pontiac Grand Prix GTP. on Thursday I preformed an engine degrease and sense then my fans won't run, my car uses more gas then it should (and by that i mean...

When in warm weather or after driving a lot of stop and go, my 1996 Pontiac Grand Prix doen not shift properly. The check engine light comes on and it wont shift up to the next gear. 1 Answer

This all started when I sprayed off my engine at the car wash. I went to accelerate and it wouldn't go. After letting up on the gas it would slowly accelerate. When the check engine light comes on I c...

I have Pontiac 2001 gtp the car started excelerating on its own service engine light came on it started over hearing and burst the coolant elbow put on engine scanner mass flow sensor & tpstips was co 1 Answer

Replaced tips but continues to excel unhooked mass sensor Dont want to purchase if its not the symptoms