Had problems with car since beginning. Accelerates on its own and lunges forward when stopping. Also the brakes failed,causing an accident. Rotors have warped on numerous occasions. Dealer contacted 10-15 times with no problem found. Car is a major safety hazard.
1998 Pontiac Grand Am acceleration complaints
Page 2 of 2: complaints 11 to 16 of 16, newest first, as owners wrote them.
Car will not accelerate properly from a stop (usually when humid)
Throttle position sensor failed, causing vehicle to speed up unexpectedly which could result in an accident.
Vehicle idle surges uncontrollably at a stop causing vehicle to lurch forward.
While driving at a regular speed car accelerated on its own, hitting another vehicle.manufacturer was contacted, and stated they could resolve the problem.
After driving the car and letting sit from 30 min to 4 hours(at various temps) and restarting going@10 MPH, the cars rpms fluctuate briefly and then accelerate dramatically to 4000 RPM luckely, I put it into netural or my speed keeps increasing, when put into neutral, the RPM's increased to 4,000 and stays until the gas is pressed firmly then it will go back to idle. Pressing the brake doesn't stop this. A couple of times the rpms fluctuated then the car died instead of accelerating.
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