2005 Trailblazer with whistling sound - Chevrolet Forum - Chevy Enthusiasts Forums

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TrailBlazer 2002-2009
The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
Platform: GMT 305, 360, & 370.

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Old 06-25-2011, 02:21 PM
CF Beginner
Join Date: Jun 2011
Posts: 1
Default 2005 Trailblazer with whistling sound

My 2005 Chevy Trailblazer makes a cyclic low pitched "whistling" sound when the A/C is running. A/C still runs fine, air is plenty cold, no problems with the fan, just the cyclic sound that now occurs whenever the A/C is running. Any ideas what might be causing that?
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Old 06-27-2011, 09:20 AM
Official GM Rep
Join Date: Mar 2010
Location: Global Headquarters in Detroit, MI
Posts: 3,917
ChevyCustCare ChevyCustCare


I am sorry to hear that you are experiencing this issue. Have you spoken with your dealership to confirm what the noise could be?

Thank you
Elizabeth, Chevrolet Customer Service
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Old 08-03-2011, 01:11 PM
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Join Date: Aug 2011
Posts: 1

yeah, ya gotta make sure you get it into the dealership so they can sell you more repairs (that they typically don't fix)
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