Wheel bearing failure? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-29-2007, 02:19 AM   #1
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Default Wheel bearing failure?

I'm hearing a lot of noise while driving. Granted my left wheel'* upper mount bearing sticks and gives me memory steering so I know the wheels are fighting each other. However at around 40mph I can a loud humming noise coming from the car.

If I turn my wheel to the right it gets less. If I turn it to the left it stays about the same. Also when I turn my wheel to the right and the humming goes down I hear another noise. I'm thinking both wheel bearings should be replaced?

I take it if i'm going to replace the wheel bearings then it would be a good idea to buy a new upper mount bearing and get my memory steering problem fixed to right?
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Old 11-29-2007, 09:54 AM   #2
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To check for Wheel bearing failure, Grab the wheel at 12 and 6 and try to move it. If it moves, then the wheel bearing is more than likely shot.
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Old 11-29-2007, 01:26 PM   #3
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Quote:
Originally Posted by BLACK94SSEi
To check for Wheel bearing failure, Grab the wheel at 12 and 6 and try to move it. If it moves, then the wheel bearing is more than likely shot.
But...have some one watch the ball joint when you try to wiggle at 6 and 12. A really loose ball joint will cause motion there as well.
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Old 11-29-2007, 08:12 PM   #4
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Spin the wheel in the air while holding onto the coil spring spring. If the bearing is bad, you will feel a grinding sensation in the spring. A bad wheel bearing wont always have side-to-side movement.
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