Heating and cooling
I have a 2000 GMC Sierra 1500 SLE standard cab. The temp control quit.
Was stuck on heat. I replaced the blend door actuator and I then had full
on heat, or full on cold, no adjustment in between. Also, the function was
now backwards. Full cool to get heat and full heat to get cool. I then
replaced control unit in dash. Didn't fix problem. Is there anything else
between control unit and blend door actuator that could be causing this???
Search GMC Sierra 1500 Questions
GMC Sierra 1500 Experts