Question about 2004 Pontiac Grand Prix

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2004 grand prix roaring noise

The roaring noise is coming from the front. It is so loud the radio doesn't drowned it out. I have rotated the tires that did not help. I have spun all wheels while jacked up and they make no noises and seem fine. What else could this be.

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  • jennifer_par Mar 11, 2009

    Thank you we have been driving our mean child around sharp corners to see which side it was we found the problem but didnt help the child he loved it.



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It really sounds like a wheel bearing to me, If you drive down a straight smooth road and gently rock the steering wheel back and forth, you can sometimes tell which side it is by the way the car loads the front wheels. I believe this bearing can be purchased as hub and bearing assembly so it is fairly easy to replace but the part is pricey. Remove the wheel, brake caliper and rotor, look through the hub flange access holes and undo the mounting bolts and pull the bearing assembly out of the knuckle.

Posted on Mar 11, 2009

  • Dave  C
    Dave C Mar 12, 2009

    Sometimes it's best just to do both, they have both been down the same road. I usually start with the one I think it is and then drive it. If it's fixed, leave it, still there, do the other one.


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I got this! Replace both wheel bearing hub assy's.. They wont make noise while jacked up.. They'll fool you.. quiet up in the air and noisy on the road esp when ya weave the car.. see dont the noise change.. Lemmie know

Posted on Mar 11, 2009


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