My 2003 2500hd has heater issues. The individual heater controls on the dash have been changed but the drivers side heat always stays on. Has to be the door switcher control, right? and how hard is it to get to it?
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!