Squealing noise from the serpentine belt?

Asked by Apr 27, 2016 at 09:39 PM about the 2006 Buick Rainier CXL

Question type: Maintenance & Repair

The belt or maybe it's one of the pullies that's
making a loud, continuous squealing noise. How
do I go about find the source of the squealing?

3 Answers

43,695

Take the belt off and inspect the idler pulleys, the belt tensioner, and AC bearing.

1 out of 1 people think this is helpful.
43,695

See if they spin without making noise, check for wobble in the pulley.

1 out of 1 people think this is helpful.
10,390

also, a worn belt itself can squeal.

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