Question about 2003 Chevrolet Avalanche

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Makes a low roaring noise when you are at crusing speed.

When you are driving the speed limit it makes a roaring noise. If you let off of the gas the noise picks up a little bit until you get slowed down. I thought it was the fan clutch, so I changed it. Did not make any difference. Put new tires on it and that didn't work. Doesn't seem like a vibration problem as much as just a loud roaring noise when you get it up to speed.

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  • kddb Dec 24, 2008

    Also changed out the exhaust and that didn't affect it.

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One of the front wheel bearings are bad. Jack it up and see if one is loose, the noise will usually change if you swerve back and forth while driving. Could also be a rear pinion bearing in the rear axle.

Posted on Jan 04, 2009

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