Question about 2000 Oldsmobile Bravada

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Front end 2000 Bravada. I hear a wum wum wum sound rolling down the road. In addition there is a slight shake that increases at 64 to 68mph. What could this be?

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Sounds like a bad tire with some cuping or possibly a tire with a bad or shifted belt and poss. out of ballance. usually bad ballance speeds are arround 60 mph but not always though. if the tire is cupped real bad on the inside edge of the tire then you probably have some bad ball joints and or steering components.
the wheelbearing noise is constant and changes with speed. also it USUALLY changes when turning while moving above 30 mph or so. this noise is usually described to me by my customers as a persistant "humming or growling" noise.
have it check out by an alignment shop if you really want to know(wich you should), but be prepared to spend some bucks unfortunately.
Good luck and hope it doesn't cost too much...................Scott

Posted on Sep 29, 2008

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My mothers car had this same problem for years. We went so far as to take it to the dealer, and the reply was that it was normal! Although it was fine for about 3 yrs like that, eventually the wheel berring broke. This part only comes as the whole wheel hub, berrings and abs and all that. Once that was replaced, the noise was gone too. I can only sumise that the noise was the berring drying out, but as its a sealed hub, you cant grease it.

Good Luck!

Posted on Aug 08, 2008

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Bad tire or outof balance wheel

Posted on Jun 14, 2008

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