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Car vibrates at 75miles /hour and above on freeway!

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Old 06-19-2006, 06:37 PM
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Car vibrates at 75miles /hour and above on freeway!

2 days ago i realized that my car starts to vibrate after my speed gets up to 75 miles and above on freeway. Everything seems to be ok on local. my coworker told me i might need tires change and do alignment. Do u know if that is the case?? My car is using H&R cupkit, normal for 1 year since last week. after my car reaches the speed 75 miles per hour, the passenger chair next to me is obviously vibrating and i can feel my chair too.. pls advise, thanks!!
Old 06-19-2006, 06:39 PM
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Are you using spacers in the front? I would guess it is that or an alignment issue.
Old 06-19-2006, 07:41 PM
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Could be a wheel balance issue. Had a similiar problem, car had vibrations at high speeds, it was a wheel balance issue.
Old 06-19-2006, 09:47 PM
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Old 06-20-2006, 08:53 AM
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I have the same problem with my 01 c320. I put new rims and tires but it still vibrates at 80mile or above. But sometimes it does not vibrates, so I dont think its a tire or rim issue. I dont want to take it to the dealer as they are going to charge me a lot. It is not causing me any problem so I am driving it as it is.
Old 06-20-2006, 09:06 AM
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I would say first do rotate and balance
this would have a chance to check on the wheel,
brake disc, suspension, and axle.

The worst case would be axle problem

But check everything, don't just do balancing
cause when do balancing, the wheels have to be out,
so you can check on the axle, see if the axle is moving
cause you don't want to go back again and again with the same problems.

Last edited by samuel003; 06-20-2006 at 09:12 AM.
Old 06-20-2006, 10:04 AM
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Bad aligment won't cause vibrations, its either a tire balance problem or a worn suspension/wheel bearings.

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