2005 GMC Yukon XL Denali Q&A

2005 GMC Yukon XL Denali Question: Rear ac not blowing

Rear ac not blowing but front is blowing cold air -
Answer 1
Check the pressures with a gauge set, if the system is a bit low, it will only cool the front 1/2 of the vehicle. -
Related Items:
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored...
I just realized yesterday on my Yukon Denali 2003 that A/C in the front is cold but the rear blowing Warm or sometimes hot air. For 2-3 minutes it blows cold air in the back then back to heat or na...