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I'm unsure of a few things

907 Views 8 Replies 7 Participants Last post by  chickenkicker
Firstly, I own a 2002 Pontiac Grand Prix GT with 47,520ish miles, and I probably wouldn't give it up for anything. However I have encountered a few annoyances with it in my first year of ownership.

  • After sitting overnight, the gas pedal sticks in the off position, causing a quicker start than I would prefer.
  • Heat shield rattles @ 1400 rpms, whats the best solution?
  • After starting the car, I shift from park to drive, the car is idling slightly high, and an abrupt jolt occurs while my foot is still on the brake. I assume that this isn't good for the transmission or the brakes, but wouldn't mind be reassured that it is or isn't a problem.
  • The windows sometimes don't go up, if I wait for 10 seconds, and try again, they will go up fine. The sunroof sometimes doesn't open all the way, and the windows have different speeds everyday.
  • I also noticed a slight vibration while driving, it appeared to come from the front passenger tire, could this just be a loose bolt?
I'm not willing to sell the car over these inconveniences, but would like to know if there is a solution, to keep the car in better working order. I get crazy at the thought of resale value.
1 - 1 of 9 Posts
I used to have a 2000 GP, and has some of these problems.

After sitting overnight, the gas pedal sticks in the off position, causing a quicker start than I would prefer.
Clean the throttle body

Heat shield rattles @ 1400 rpms, whats the best solution?
Do you know which one? Maybe can be tightened or welded at a muffler shop

After starting the car, I shift from park to drive, the car is idling slightly high, and an abrupt jolt occurs while my foot is still on the brake. I assume that this isn't good for the transmission or the brakes, but wouldn't mind be reassured that it is or isn't a problem.?
Check the motor mounts

The windows sometimes don't go up, if I wait for 10 seconds, and try again, they will go up fine. The sunroof sometimes doesn't open all the way, and the windows have different speeds everyday.
These window motors are problematic. Both of mine were replaced under warrenty. I believe there is a SB published on this problem.

I also noticed a slight vibration while driving, it appeared to come from the front passenger tire, could this just be a loose bolt?.
Could just be out of balance, or a bad tire
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