Mechanics

GMC YUKON FUSE PROBLEM

2001 GMC Yukon • 187,000 miles

Two days ago my heater or ac will only blow out through the defrost vents. Rear air blows correctly. Cannot find diagram of vacuum hoses.
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Guest
January 4, 2013.




First try pulling fuse for hvac for 60 seconds then see if that fixes it, sometimes it does. Then check item 3 & 7 in attached drawing.


Hmac300
Jan 4, 2013.


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