Heater Core: Service and Repair

1. Drain engine coolant into suitable container, then remove dash panel as described under Dash Panel.
2. Remove evaporator core as described under Evaporator Core.
3. Remove heater hose clamp, then heater hose and quick coupler, Fig. 9.
4. Disconnect air mix actuator, airflow mode actuator and water temperature sensor electrical connectors.
5. Remove heater unit.
6. Reverse procedure to install.

Fig. 9 Heater Core Replacement: