2004 GMC Sierra "heater won 39 switch vents" Questions

Heater only works on heat won't switch over to defroster or vents Heater only works on heat won't switch over to defroster or vents Sounds like the blend door. The actuator motor is ...

won't go to vent or floor, blows strong out of defrost vents but does not switch to other vents. I have the temperature control heater, and while I can get good strong heat blowing out the defrost

...won't switch between defrost, floor, or vent locations. When I set it to the blow at the floor level, it just blows through the defrost. When set to blow through the vents, it does half and half ...

...heater control THE HEAT AND A/C TEMPS ARE FINE, BUT IT ONLY BLOWS THROUGH VENTS. IT WON'T BLOW THROUGH DEFROST OR FLOOR NO MATTER WHAT SETTING ITS ON. WHEN I SWITCH IT, IT SOUNDS LIKE ITS TRYING ...

...Heater blower fan mode control won't work 1990 Dodge Caravan Sport model. The mode control for the heater & A/C has stopped working. I can't redirect the air flow from the floor vents ...

...heater won't blow more then just warm air. No hot air at all and the temp of the air it does blow is dependent on the temp of the engine only. Any help would be appreciated!! replace the climate ...

...won't blow except for on the dash at window The mode control on your heater panel uses engine vacuum to operate the doors in the heater box.  when the system loses vacuum, it defaults to the ...

...heater/ac is turned on you can hear the fan work but the vent won't open and close. When you say that the "vent won't open and close" do you mean that the mode control is stuck on ...

...heater core won't keep the compressor from working.You say the ac system is charged, but the compressor won't come on ??The compressor has to run to charge the system, otherwise you will only ...

...heater/A/C temperature control cable for a 1987 Forde Econoline E-350. Where can I find it? Hello! Google; Temperature control cable 1987 ford E350...Click on the second choice; Ford E350 Econoline ...