Hi everyone, I have a 94 GrandPrix. It will not blow air out of the dash vents. It will blow it out the floor or the defrost but not the dash. I took the control out and checked the circuit board and I didn't see anything visable, no problems, I tried another complete control plugged it in and the same thing. I was told it could be the little electric motor that diverts the air from one vent to the other. Has anyone came across this before thanks this looks like a great sight.

 

Hi there,did you figure it out? I have an 02 grand am. Same issue. Blower motor and resistor are good but I'm not always getting air out of the vents. It's intermittent for me but just not sure how to diagnose it.