I pretty sure ur truck doesn't have a cabin filter, I could be wrong?? I would say check the relay for the switch, if good then my guess is that the switch it self is bad, Does it blow hard out of the floor, vent or defrost, like it's stuck on one or the other?
If no air flow at all, it most likely will be the blend door is broke off at the pivot point on the electric actuator, it's behind the glove box
Last edited by duker; 03-21-2012 at 10:34 PM.
Reason: Automerged Doublepost