Question about 2003 Chevrolet TrailBlazer

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Whining noise in 2003 trailblazer i replaced the puly, alternater, and powersteering pump need help

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Before replacing any parts, the source of the whining needs to be isolated. You can use a car stethescope or a long screwdriver and carefully place the end on various areas at the front of the engine and listen for where the noise is the loudest. Another method is to remove the serpentine belt and rotate each pulley that is driven by the belt, listen for noise and feel for rough movement.

Posted on Mar 13, 2011


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