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2002 Pontiac Grand Prix Vibration when acceleration under l

Tiny
MARKE52896
  • MEMBER
  • 2002 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 123,000 MILES
This car seems to run fine. At idle and low speeds there are no problems. If I doing 45 mph or more and accelerate there is a vibration through the car. I really don't feel any vibration through the steering wheel just the car in general. Does not matter if it's 45 or 70 mph you feel the vibration when accelerating. Let off and coast and it is very smooth. If you are accelerating and go over a dip in the road when there is more pressure on the car as the force pushes down the vibration is more pronounced.
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Monday, April 20th, 2009 AT 6:24 AM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello
Thanks for the donation

I would first like to apologize for the slow response as we have been busy here at 2CarPros over the last couple of weeks.

Vibrations that are felt throughout the vehicle are most commonly caused by imbalanced tires. However, it may be more serious of an issue such as a problem with the driveline (i.E. Suppor bearing assembly ). I suggest having the tires properly rotated and balanced also ensuring the tire pressure is correct. If all this is OK and vibrations still occur, a driveline inspection will be necessary to determine what is loose or at fault causing the vibrations.

Thanks for using 2CarPros. Com!
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Wednesday, April 22nd, 2009 AT 12:01 PM

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