Hello Guys, Yup I am a newb and have a question. I have a 2006 Sierra 2500HD WT, Very basic nothing special. Sometimes when I have the AC on the Drivers side will blow hot air. Even when I turn the control off I still feel hot air coming out. When I shut the truck off and remove the key it seems to reset it some how and goes back to AC, at first it was once and awhile and now is alomost constant. Any Ideas on whats up ? I apprecaite the help.

MerchantMarine

 

sounds like a blend door problem.

 

Thanks, I will try that. The AC blows cold on the passanger side and the driver side is smoking hot..