Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Loud whistle then no A/C!

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Old Jun 20, 2022 | 09:47 AM
  #1  
joefromnj's Avatar
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Default Loud whistle then no A/C!

Driving down the highway {06 H3} and all of a sudden a deafening loud whistle for about 15 seconds, then no A?C! Where do I start? TYIA!~~~J
 
Old Jun 20, 2022 | 10:57 AM
  #2  
Doc Olds's Avatar
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From: Boat Town USA MI
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Look at the AC clutch with the hood open and see if it is engaged when the AC is switched on.
 
Old Jun 20, 2022 | 04:23 PM
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hummerz's Avatar
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From: C-Town
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A/C sprung a leak. Inspect system to find the leak source.


 
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