2002 Chevrolet S-10 "defrost blows cold air" Questions

...blows cold air instead of hot air. Any suggestions as to what could be the problem? will the air flow switch from floor to the mid to defrost? if so then we have a problem with the tempature door ...

...air, everything else works blowing hot or cold. The door that opens for the defrosters is shut for the motor that runs it quit working. They are actuator motors the factory call them. You have this ...

...blows cold air. also, the temperature gage heater blows cold air. also, the temperature gage goes from 200 to 160 in less than a minutes. any ideas if these are related A thermostat stuck in the open ...

...blows cold air especially when sitting still (I'm unable to defrost windows in the morning) even after 15 minutes of idling. Heater usually starts to work after driving. Then its all of a sudden and ...

blows ice cold air out of all three vents (Floor, Panel & Defrost). I'm thinking maybe the control is bad and the compressor never kicks off because of it. Any ideas? First be sure that you do not

defrost and down the floor board and works fine. i can chenge the control panal from cold to heat and its still blows cold. i took the acurator back off and i can move the flat by hand to hot and cold

...blows cold air defrost vent only looking at actuator above gas peddle ok a/c off i turn ignition on actuator rotates left to the engine stops then rotates right all the way towards the floor ok i ...

...cold air First thing I would do is check to see that the level of antifreeze is up to where it is supposed to be. If that is right, it is probably your thermostat is stuck open not allowing the ...

...blows cold air at all three levels (floor, mid and defrost). You said there could be a "problem with the tempature door actuator". Where is this located, is it diffucult to replace and how much does ...