HVAC System Airflow

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

The system draws outside air through the cowl opening at the base of the windshield. Then it goes into the plenum chamber above the HVAC housing and passes through the evaporator. At this point airflow can be directed either through or around the heater core.

Airflow temperature can be adjusted by the blend door with the TEMP control on the HVAC control. After the air passes the blend door, the air flow is then directed from the PANEL, BI-LEVEL (panel and floor), and FLOOR-DEFROST outlets. Air flow velocity can be adjusted with the blower speed selector switch on the HVAC. Ambient air intake can be shut off by closing the recirculation door. This will recirculate the air that is already inside the vehicle. See owners manual for recirculation operation.