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Old 04-17-2010, 06:58 AM
nisrjz nisrjz is offline
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2004 Armada
 
Join Date: Jun 2009
Posts: 41
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Wheel bearings generally make a cyclical womp womp womp noise...if they are really bad they grind, in which case you should pull off the road immediately. Next time you hear this roar, pull off the road and touch each wheel (the metal part). If one of them is super hot such that you recoil your hand, that is the wheel and it is a wheel bearing problem. Get it fixed quickly.

On the other hand a "roar" is frequently the tires making noise. Tires can "cup" if there are suspension problems, such as worn shock absorlbers. Stop and run you hands over the top of the tires. If you feel flat spots, that could be the problem. Bring it to a tire guy to check out.

Finally, vibrations can be as simple as a tire being not balanced properly. Take your shop to a good shop with a tire balancing machine and check the balancing of all tires.

Pay attention to this problem and make sure you find the cause, because if it is a bad wheel bearing, this can be extremely dangerous.
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