TWO DAYS AGO MY HEATER OR AC WILL ONLY BLOW OUT ...

2001 GMC Yukon

Tiny

Anonymous

January, 4, 2013 AT 1:17 PM

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.

FOUND 415 RELATED QUESTIONS

1 Answer

Tiny

hmac300

January, 4, 2013 AT 3:31 PM

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.

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