Question about 2004 Chevrolet TrailBlazer
To see if the noise is coming from one of the accessories driven by the serpentine belt, remove the belt and run the engine for a short time. If the noise is gone, spin each one the pulleys and see if you feel any roughness or the pulley is binding. The belt tensioner pulley and the idler pulley are the most frequently ones that cause squealing noise.
Posted on Sep 25, 2010
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Posted on Jan 02, 2017
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