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99 Sierra no cold air

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Old 05-29-2009 | 03:22 AM
tim taves's Avatar
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Default 99 Sierra no cold air

HI, I have a 99 Sierra, it's not blowing cold air with the AC on. To test this, I have run the truck with the AC on max, the AC compresser is not engaging. I have checked the 10 amp "ac" fuse, it's ok. What other checks can I do to diagnose the problem? Any tips would be appreciated.

Thanks,
 
  #2  
Old 05-31-2009 | 11:00 PM
RUFFNECK4LYFE's Avatar
Toyota, Nissan, and Other Truck Forum Moderator
Joined: May 2009
Posts: 1,845
From: West Texas
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Try the cycle switch mounted on the accumalator.
 
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