2006 Gmc Yukon Replaced Resistor Front Heat Air Now Rear Just Blowing Cold

2006 GMC YUKON
127,000 MILES
Avatar
JOHNNYMACK
  • MEMBER
  • 3 POSTS
I replaced the resistor to front heat and air , now the rear is just blowing cold air , do I need to have it re calibrated ? It isn't showing a code either , could the rear have gone back to its default setting or something else possibly bad also?
Jan 15, 2013 at 10:25 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Was it the blower motor resister that was replaced? If so, that only operates fan speed. Let me know.
Jan 15, 2013 at 11:21 PM
Avatar
JOHNNYMACK
  • MEMBER
  • 3 POSTS
Yes it was front blower motor resistor
Jan 17, 2013 at 3:27 AM
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
That shouldn't have affected rear temp.
Jan 17, 2013 at 3:46 AM
Avatar
JOHNNYMACK
  • MEMBER
  • 3 POSTS
Kinda coincidental that rear heat quit working all of the sudden after replacing front resistor! So what could it possibly be ?
Jan 17, 2013 at 3:54 AM
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Is the fan blowing cold air? Have you checked the heater core for the rear? Is it getting hot>?
Jan 17, 2013 at 4:12 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.