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2007 sierra automatic climate control issues

1498 Views 7 Replies 4 Participants Last post by  black07sierra
Truck is new body style 07. Has the auto climate control. Every now and then ab quits blowing from main vents and goes to defrost. Only way to make it go back to main vents is to shut truck off and I guess it resets itself. But in a day or two it will do it again. Anyone else having these issues or know what it is?
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Damn... That's a good one. Let me ask my buddy and see if he has got something.
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