07 Yukon xl front air blows cold rear air blows warm

ID Status Date Year Make Model Transmission Type A/C Controls Public/Private
#14582 Closed 2007 2007 Yukon Denali XL public

My 07 Yukon XL front ac blows cold but rear air blows warm. Any reason why this is happening?


Low refrigerant charge, faulty rear expansion valve or faulty rear blend door actuator.

I would start by checking to see if the suction line is cold at the rear of the vehicle after the system has been running for a few minutes. If it is then a faulty actuator is the most likely of the three.

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