2004 Chevy Blazer ac compressor chirp

2004 CHEVROLET BLAZER
85,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MROVNAK
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  • 1 POST
On my 2004 Blazer, The pulley with the serpentine belt wrapped around it, in front of the ac compressor makes a squeal or chirpping sound when reved high in park or when accelerating uphill. The noise seems to happen when the pulley stops then spins again.
Aug 19, 2009 at 4:16 PM
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JACOBANDNICKOLAS
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  • 110,194 POSTS
  • ASE Certified Mechanic
The pulley shouldn't stop. Do you mean when the compressor engages? Also, is the belt in good condition? Finally, is the belt tight?
Sep 2, 2009 at 8:02 AM
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