TwinTurbo.NET: Nissan 300ZX forum - Often (but not necessarily always) you can determine the
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Subject Often (but not necessarily always) you can determine the
     
Posted by CatnipZ on January 11, 2007 at 8:45 PM
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In Reply To Re: One way to tell is to jack up the car and see if the whe posted by dTb on January 11, 2007 at 07:36 PM
     
Message faulty bearing by taking turns like interstate ramps at enough speed to shift most of the weight of the car to one side and hold the weight to one side long enough to determine if there is a change in sound. It should get louder if you take a turn that shifts the load to the wheel with the bad bearing. (In other words, turn right to test the left side bearings and turn left to test the right side bearings.)

When my front driver's side bearing went out (at about the same mileage as yours), it sounded like a roar that slowly, but progressively got worse. I changed out all four tires before I finally diagnosed it as a bearing.

To replace, the bearings must be pressed in, so unless you have the tools, you'll have to take it to a shop.

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