My 1996 Grand Prix has 177,000 miles on it. As you drive the car, it sounds as if there is a loud noise coming from the back of the car. It does not make the sound until you reach 25-30 MPH and gets louder the faster you go. The sound reminds me of the sound worn tires make when you get that 'whirling' noise, but the tires are in great shape (only have 15,000 miles on them with no uneven wear on the tread. I just replaced the mufflers a few months ago and there are no holes in the exhaust, so I ruled that out. I had thought that maybe the half shafts may be starting to go, but the sound permeates from the rear and not the front. Any idea what might be causing the noise?
Thank you for your assistance
Bryan
Probably a rear wheel bearing, jack up car and block it up, grap each wheel and shake firmly if a wheel wiggles
the wheel bearing is worn out.
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