1999 GMC Yukon "rear ac blow cold air" Questions

...to blow cold. Why is it doing that and how do I fix it?? Could be low on freon, a faulty expansion valve on the rear system, or other issues.  Can you tell if the rear ac lines are hot and cold

...rear AC blower still works but the front quit. It used to blow cold but not only blows hot. If you still get cold air out of the rear vents but the front only blows hot air you may have a bad temp ...

ac only ocold air coming out of front vent rear vents not blowing cold air I believe that this system has a dual condensor setup, my have an issue with the rear condensor, or a leak in the rear lines.

...a few seconds and turns off. I have a 2006 yukon and have had to replace the actuator in the rear heat/ac twice. It moves a valve that closes the cold/hot ducts. It is a cheap defective

...AC systems. One operates the system that cools the front of the passenger compartment, the other cools the rear. It would have cost an additional $1000 to fix the rear system, so I didn't have it ...

...rear ac expansion valve? I have read that it could be many things. Is there one that would be more likely than the others??? To check the rear expansion valve, see if the a/c lines are different ...

...rear AC and inspect if it is just the signal from the temp control does not go to the evaporator (the coils inside the car).. could be caused by a loose connection or faulty control unit. Inspect for ...

rear AC blower on my 1999 GMC Yukon. For whatever reason, when I turn on the rear AC unit the air that blows is cold and clean but there is a loud high whine that comes from the rear of the vehicle. I

...to the blower. under dash on passenger side my 98 yukon just did the same thing. the rear ac was fine but the front started to stop working and wouldnt always turn on the front blower motor was ...