Question about 1999 Chevrolet Blazer

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Loud hum from front end-99 blazer 4x4

Noise increases with speed. very loud hum at 55

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  • trkpro Jan 23, 2009

    Had to replace new hub I put on 35 days ago. Found out no warranty on this product. Bearing had turned blue and was almost frozen up. Sounds like it was bad from factory to me..Made in China..NAPA product. Thanks for your help, youwere right on.

  • Anonymous Mar 29, 2014

    at 30 starts humming, 45 loud, 55 can barely hear it, puut in neutral at 55, rpms drop, noise stays with speed

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Sounds like the front hub bearing assembly.

Posted on Jan 22, 2009

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