Mine on my 2005 Sierra went bad and I drove it for a few years with it partially working. I could restart the truck and it would start working again. Mine was the blend door actuator for the drivers side. It's an easy fix, the part cost me 19.00 off of ebay and it took me 15 minutes to fix. Now I'm looking for a instrument cluster for the same truck.
Last edited by smokinggun; 08/13/17.
