Thread: 2004 Grand Prix Vibration on Hwy Please help!!!!!!!

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  1. #1 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
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    I have a 2004 grand prix gt it started to vibrate on the hwy about a week ago. It has 152,000 kms. I replaced the cv axle at 117,000 kms, Bearings at 135,000 and I have michelin Hydroedge tires with 65% tread left. I also just did the breaks last week with new rotors and break pads. I had an alignment at 125.000 and the tires balanced at 120,000. The vibration isnt horrible but it is annoying. I was just wondering what it could be? Any help would be much appreciated. Thanks in advance.
    Last edited by bjornbjorn; 06-30-2011 at 09:55 PM.
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  2. #2 Re: 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
    The mod from over yonder TheOtherNick's Avatar
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    Re balance the tires.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
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  3. #3 Re: 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
    GTP Level Member lambokit's Avatar
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    X2^^, start with the tire balance. Do you feel it in the steering wheel or is it coming from the back of the car? Turning, acelerating or what? It could be a rear wheel bearing if it's vcoming from the back of the car.
    Lambokit to be built!!!!!
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  4. #4 Re: 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
    Donating Users Ca5p21x's Avatar
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    Also you may want to check and see if any of your wheel (Rims) are bent. That will cause vibrations as well.
    Last edited by Ca5p21x; 07-01-2011 at 12:12 AM. Reason: Mistake
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  5. #5 Re: 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
    GTX Level Member Ricky21's Avatar
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    I had a bad tie rod and it vibrated at high speeds like that. But it got real bad, thought my tire was gonna fall off
    Open cone, SSAC headers, cat delete, 8.5 MSD wires, 3.4 zzp mps, 180*, 104's, ported blower, DHP canned tune, 19" XXR 962s, DNA springs.
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  6. #6 Re: 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
    I live here. brandonl2000's Avatar
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    having a vibration issue myself. after replacing axles, tie rod ends, and some other odds and ends, i had the tires balanced for the third time, but this time on a gsp9700. (find one near you at gsp9700) get it road force balanced. as it turns out my tires are crap and the treads are moving around as the tire rolls. so there was my vibration.

    the machine is apparently great for diagnosing hard to solve vibration problems. it tests for rim runout, tire runout, tire pulling (if equipped), and apparently has a more refined balance (dynamic). so you can check it out and maybe that'll help you.

    new tires on the way for me, so *fingers crossed* good luck!
    2003 Grand Prix GTP-3.5 setup, sold it, miss it
    2002 Grand Prix GT-top swap, GT1 Cam, SD Headers, 90# springs, 42.5 injectors, 3.4 pulley - sold
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  7. #7 Re: 2004 Grand Prix Vibration on Hwy Please help!!!!!!! 
    GTP Level Member joshv's Avatar
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    had the same problem untill i noticed i had a warped tire lol
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