2004 Chevrolet Tahoe "ac car comes defrost dash" Questions

...ac at all previously. At least now the defrost vents are blowing cold. Any ideas? I think your problem is the head unit that selects where the air comes out ie. Face, floor, defrost, or hi-level face ...

...defrost vents. If I turn the A/C off and only use the blowers, the air will come through the dash vents. Any ideas? the ac blend door is out of adjustment or the the actuator is not working look ...

ac/heating system. Your vehicle has electric motors that move the air to defrost, floor, inside or out, etc. One of those actuators could be malfunctioning, but they usually just stop working. I would

...ac is blowing through defroster vent only not blowing through dash board vent How to fix thanks Look for a cracked or deteriorated vacuum hose on the engine. There is a mode door in the plenum box ...

...comes out, is the defroster vents on the dash by the windshield. It actually warms the entire vehicle, but n Thermostat? Fuse? Blower motor? any other suggestions? i hadsimale problems on my taho the ...

...dash ac/heater control head but that did not work. Any ideas?? It sounds like vacuum is not getting to the vent, heat and A/C controls. Find the vacuum can. It may be under the hood on one of the ...

...vent the ERG shouldn't have anything to do with what vents the AC comes out of, rather the dash switch that exists for changing from defrost to main vents to floor vents controls what vents are

car starts the screen goes to 75 then to blank with little dashes then defrost blows hot air. nice an cold as long as digital ac display is showing numbers computer diag cover is in place but is stuck

ac vents not working THE AIR TO BLOW IN THE CABIN DEFROST VENT/FLOOR VENT/DASH VENTS. AIR ONLY COMES FROM THE DEFROST VENT. A/C SYSTEM AND VENT AND HEAT ALL WORK WELL JUST BLOW FROM THE DEFROST VENT. ...

...ac vent only comes out of the defroster and the floor i replaced the vent door accuator but that didnt work what could be the problem 2004 gand marquise Looks like the body cpu fried. Common problem ...