2003 GMC Yukon XL Denali Q&A

2003 GMC Yukon XL Denali Question: The rear AC is blowing hot air when the front is cold why ??

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 natural air. Any reason why?? It has 93K mileage -
Answer 1
low in freon. take it and have a pr check it our and find your leak. Roy -
Comment 1
My 2003 Trailblazer is doing the samething. Did you ever figure out what was causing your problem? -