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
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2005 Trailblazer with whistling sound

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Old June 25th, 2011, 2:21 PM
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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?
Old June 27th, 2011, 9:20 AM
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flock4,

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
Old August 3rd, 2011, 1:11 PM
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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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