2002 Pontiac Bonneville Q&A
2002 Pontiac Bonneville Question: Why is my car jerking upon acceleration?
I recently had the transmission solenoid replaced, but now my car is jerking everytime I drive. It normally starts up about 10 minutes into driving, like after the car is warmed up is when I notice it. Before I got the solenoid replaced it rarely jerked, maybe once in a great while. But now its literally all the time! What else could possibly be wrong? Someone please help!! - mallory815
You have an 'engine misfire' that is more pronounced and frequent now that the transmission solenoid has been replaced. It is now actually shifting into a higher gear than it was before, you can't really feel it, and then the engine is under more load. That is your jerking or jumping! Have it tested to find this misfire. Is the service engine soon light on or flashing? - pushrod
if light is on scan codes and post so we can adv - globalhelper