...to put it back on quickly, If air lock this will clear it and will show you if you have circulation. If this fails to solve the problem then you have a "door" control problem in you interior
...door or heater core cloged you can check the lines if one is cooler than the other then it is most likely the cause mine had this pboblem. took it to gm dealership. they wanted $700 for new box. i ...
heater blows hot for a min than blows cold you have a weak actuator door that closes the heat out. that part is part of the heater's control box
heater panel, the arrows which indicate direction of air flow is flashing. Is that some kind of system warning? Well this will tell you that the door that directs the air flow in not moving fully into
...heater control module to open the door from hot to cold. I does take some knowledge on recalibrating this actuator and installing it. if it isn't install correctly it could damage the ...
heater on all the time heater dials are off but heater on Usually a sign the blend door is stuck in the heater box. The blend doors direct air thru the box and the vents.
...door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails ...
...heater core is OK. (3) NEXT: You'll need to check the Temperature door on the A/C Housing. Move the temp control from hot to cold and see if you hear the door moving or if the air flow changes. One ...
heater hose and compare it to the other. If it's clogged one will be extremely hot and the other somewhat warm. If it's not clogged both will be extremely hot. (3) You could have a blend door problem.
...heater core alway has water passing through it? lots of questions please help! Temperature is controlled by an air mix door inside the HVAC compartment. This door is either electrically actuated if ...
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