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humming/whining coming from passenger side front


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I have started to hear this humming/whining coming from the passenger side front of my car. The thing that throws me off though is its only if the car is moving, doesnt matter if the car is in gear and under load or in neutral idling, as long as its moving it will happen. But then as soon as i start to hear it, it vanishes. What gives? It sounded like wind the first time heard it and it still does but it never made that noise on this car before. It literally comes and goes like an on/off switch.

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I would agree with wheel bearing. Non serviceable bearings have an awful habit of showing up bad and showing the signs you are talking about. One day there will be no noise and the next you swear you hit the nieghbors cat.....over and over again. If you hear it in the front, it is easy to diagnose. Just find a safe road and load up the suspected bearing going about 30 to 40 mph, a gruff noise from the loaded side means bad bearing. What can happen sometimes where a bearing starts to fail is that it will be noisy at first but once it warms up it will quiet down. I would start saving for a new bearing. good luck!

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