Why does my truck blow hot air on one side and cold on the other?
Why does my truck blow hot air on one side and cold on the other? This situation can be caused by a bad blend door (also called air mix) actuator, a broken or binding blend/air mix door, broken linkage to the blend/air mix door, or a faulty HVAC control head or wiring harness. Why does my Silverado blow cold air and then hot air? I have a 2004 Silverado 4x4 with duel temp controls. It recently starting blowing hot air when the a/c is on but it only blows hot air on the drivers side. The passenger side still blows...