Question about 2001 Oldsmobile Alero

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Makes a humming sound between 30 and 40 mph

Makes a humming sound starting between 30 and 40 mph then it gets progressively louder as the speed pick up. the engine sounds perfect at an idle and the tires are brand new. could this be some sort of drive line issue? I don't feel any strange vibrasions.

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  • Oldsmobile Master
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I suspect that one of your wheel bearing have worn out. SO to confirm please lift up one by one all the wheel and rotate. listen to any hum which corresponds to your noise. hold the wheel on either sides and check for any shake even a small one. if you detect a hum check the wheel bearings and the HUB, most cars have this assembly making the noise specially when the grease becomes dry or there had been water logging specially salty.If so change the bearings / hubs, when changing look out for any damage to the axle. I hope you get this right. Helpful? Good day.

Posted on Jul 07, 2010

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