Mike's Workshop Manuals: Service manuals for every vehicle
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Defroster Control (All Models)

Defroster control operates heater housing door regulating heater and defroster operation by directing flow of air through defroster hose or floor outlets. When control knob is pushed in, blended air will enter passenger compartment through floor heat duct. When control is pulled completely out, door directs all heated air to windshield defroster outlets. Any intermediate position divides airflow between windshield and floor outlets.