I have a 2000 Pontiac Grand Prix GT, its got 104,00K miles on it. This is the second one i have owned that has had this problem.

The car tends to pulsate at different times, it will do it under a load. like when going up a hill, or at a certian acceleration, these are the only times that it does it. If anyone has any ideas as to what might be the problem, your input is welcome. This is a very annoying problem and i would like to get it fixed. Thanks in advance.

I have the same problem on my 1996 GTP. I am going to change the wires this weekend, to see if it corrects the problem. It feels to me like the tranny is going to fall out of it, but I doubt that it is related to the tranny at all because it is all electronic. My other 1996 SE had a silimar problem, and it turned out that it was a corroded connection on the coil pack. Check that. Good luck. If you hear anything or fix your problem, I would appreciate the feedback as well.

Hey, I just posted this exact same problem. I had my plug wires changed and it did squat. I dont know this engine very well so i dont even know where the distributor is. So i cant see if anythings messed up. Good luck.

Hi XEcuti0ner,

My 1999 GP GT has this same problem....I have no idea what is causing this...have you fixed the problem on yours yet? Any info would be greatly appreciated...

Thanks,
Greg




I have a 2000 Pontiac Grand Prix GT, its got 104,00K miles on it. This is the second one i have owned that has had this problem.

The car tends to pulsate at different times, it will do it under a load. like when going up a hill, or at a certian acceleration, these are the only times that it does it. If anyone has any ideas as to what might be the problem, your input is welcome. This is a very annoying problem and i would like to get it fixed. Thanks in advance.