AC blowing cold up front ,rear blowing warm air. Are they separate systems?
What is your question?
Just recharged the system, cold air in front, warm air in passenger compartment!
What makes this problem better or worse?
RearA/C blowing warm. Air ,front blowing cold
How long has your 2002 GMC Yukon XL 1500 had this problem?
A few weeks
1 Reply
Popular Answer
DaveJMon May 16, 2021
The rear utilizes the same compressor and refrigerant system, but does utilize additional lines to a rear "auxiliary" evaporator core. When the A/C is running, the rear core gets cold too. Then it's about the fan blowing and giving out the cold air through the vents -- as long as the temperature blending controls in then back are also working. Testing hands on is needed. www.repairpal.com/repair-shops
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Opens 8:00 AM Sat
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