Question about 2000 Chevrolet Blazer
Controls work to direct heat anywhere else. Vacuum control is working under dash. I can see it turning the arm that is supposed to blow heat to the floor, but it looks really loose where is goes through the housing. How do I tell if the door is broken, and how do I fix it if it is?
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Posted on Jan 02, 2017
SOURCE: heater controls do not work
have you tried flushing out your heater core? i thought mine was that also but i flushed out my heater core with a water hose and it is hotter than when i bought the truck
Posted on Jan 02, 2010
SOURCE: AC blowing behind dash
on your vehilce it does not use vacuum to control the vent direction.
It uses a series of actuators (electrical).
My guess is that the air blows out the defrost (top vents) this is the default position for the mode door actuator.
More than likely it will have to be replaced.
Posted on Aug 07, 2009
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