I tried using my AC today in this truck and can only get air coming out of the lower vents. When I select just upper vents on the control panel, it sounds like the air is at the upper vents but nothing is coming out. When you select both lower and upper vents, you get air out of the lower but nothing out of the uppers.
How can I tell if there is an issue with the control panel which I know that as they get older, they can have problems, or a blend control door problem? I used to be able to hear a door close or open behind the dash when I moved the knob but I don't hear anything like that now just a louder rush of air when I select upper vents only. Truck has 119,000 miles on it.
How can I tell if there is an issue with the control panel which I know that as they get older, they can have problems, or a blend control door problem? I used to be able to hear a door close or open behind the dash when I moved the knob but I don't hear anything like that now just a louder rush of air when I select upper vents only. Truck has 119,000 miles on it.