Heater Controls [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Heater Controls


preachermic
03-16-2009, 10:38 PM
I was driving my truck today and when I turned the defroster on all I could get was air from the floor vent for the heater. I can't seem to change the air flow no matter where I turn the control to. My AC does not work now either. Any suggestions as where to start would be appreciated.

BlueBurby1
03-16-2009, 10:42 PM
the gates in the heater box could be stuck, or the motor that controls them...i'm not too sure about these systems, i haven't yet had the pleasure of dealing with them...but that reminds me i \have a vacuum line to reattach on my mother in laws astro...

Thunderr
07-06-2009, 09:09 AM
Same boat, mine's stuck on defrost.

Someone, anyone?