01 Yukon A/C blowing hot air

[Luciano 505]

So I have a 01 Yukon that's blowing out hot air when A/c is turned on. The rear a/c works perfect... I've replaced the door actuator and the climate control computer module, and it's still blowing out hot air.... I've also tried recalibrating many times with no success.... it would be awesome if y'all can help me out, it's too hot to be without a

 

[exp500]

Remove blower and clean evaporator. Leaves/dirt.

 

[swathdiver]

So I have a 01 Yukon that's blowing out hot air when A/c is turned on. The rear a/c works perfect... I've replaced the door actuator and the climate control computer module, and it's still blowing out hot air.... I've also tried recalibrating many times with no success.... it would be awesome if y'all can help me out, it's too hot to be without a

Put my scan tool on a '05 today with the same symptoms. I suspect that it is low on freon. The rear AC was cool and the cab cools down up front when moving but while sitting still we were sweating.