why is the driver's side a/c not working but the rest of the vents blow cold air?

why is the driver's side a/c not working but the rest of the vents blow cold air? 1 Answer

Running the heat split between the dash and floor vents in a 2008 Yukon XL. The heat is cold on the passenger side on the floor. What is the problem? Acuator? If so whcih one? Thanks! 1 Answer

Running the heat split between the dash and floor vents in a 2008 Yukon XL. The heat is cold on the passenger side on the floor. What is the problem? Actuator? If so which one? Thanks!

My a/c and heat only blow out the defrost in the front. 3 Answers

The rear air works fine, the a/c is cold, and the heater is hot. Just can't get anything to blow out the face or feet vents in front, only defrost.

Why does the defroster vents only work no matter what setting the selector is set to? 4 Answers

No matter cold or hot, the air only blows through the defroster vents, no matter which setting is selected.

I have a 2002 Yukon XL. The heat works in the rear cab, but blows cold in the front. What's wrong with it? 5 Answers

My front heater has just stopped working. I've checked the antifreeze, filled it, and still cold air. The rear cab vents blow heat just fine. What could my next step be to have checked?