07 chevy trail blazer blows heat through defroster but not by fan and i have to be moving to feel the heat

Asked by Jan 14, 2017 at 09:35 PM about the 2004 Chevrolet Tracker LT

Question type: General

My Chevy Trailblazer only blows heat when the car
is moving and that's only through my defrost or
what what could be the issue

1 Answer

73,665

Make sure the coolant level is full. So it sounds like the HVAC Defrost Mode Actuator is bad. It is under the dash somewhere in the vent system.

Your Answer

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