hvac actuators and dash removal

[D.Taylor]

I’ve got a couple of the same issues. No air thru vents, the rear air doesn’t work, and now the blower in the front has quit. The front blower was hit and miss for a couple weeks, more hit than miss, and now it’s out completely. I’m figuring it’s the blower motor, any tips of checking it? Also figuring it’s going to be a full dash pull to fix it.

 

[TollKeeper]

I would start your own thread to discuss this further..

That said, for your front blower, the blower motor resistor pack is a known problem on ALL GM products. I cant help on the rear AC, as I have never had a vehicle that has had it.

 

[Shdwdrgn]

In mine the controls for the rear seats just seem to be a small fan in the center console which allows air through from the dash blower. I have this feeling if you get the dash blower and actuators fixed, the rear controls will start working normally again.

 

[gmcman]

I believe the rear vents turn off when in defrost mode. Also the face and floor vents in the front turn off as well so my guess may lie with the defrost circuit?