Air Distribution System

Air enters the heater and ventilation system where it is heated as necessary before being sent to the proper ducts and outlets for discharge into the passenger compartment. Within the heater case, doors guide the airflow in response to the positions of the temperature control knob and the mode control knob in the heater control unit. Depending on the mode selected, the mode doors mix and direct either cooled, heated, or outside air through the air ducts.

Ventilation Description

Ducts and Outlets

The mode control knob operates the air flow control doors. The doors route the heated, unheated, fresh, or recirculated air through the following ducts and outlets:

^ The right I/P duct
^ The left I/P duct
^ The center I/P duct
^ The right side window defroster duct
^ The left side window defroster duct
^ The windshield defroster nozzle duct
^ The center floor duct
^ The right I/P louver
^ The left I/P louver
^ The center I/P louver
^ The right side window outlet
^ The left side window outlet
^ The right windshield defroster nozzle
^ The left windshield defroster nozzle

Body Ventilation

The body ventilation system provides the passenger compartment with fresh, outside air which is routed through the same vents as the heated air.

The primary fresh air intake is located within the cowl panel. Air is drawn into the interior of the vehicle from the intake grill and is drawn out from the ventilator outlets in the body quarter panels.