Heater Core: Service and Repair

REMOVAL
1. Remove heater outlet floor duct.
2. Raise vehicle.
3. Disconnect heater water hoses from heater core inlet and outlet tubes. Plug heater water hose and cap heater core tubes to prevent coolant loss during removal of heater core.





4. Disconnect vacuum supply hose (black) from vacuum source in engine compartment.
5. Lower vehicle.
6. Disconnect vacuum supply hose (black) from A/C vacuum reservoir tank and bracket inside vehicle.
7. Release four retaining tabs, remove two clips and remove heater core cover containing heater core, and vacuum hose from vehicle.
8. Remove heater dash panel seal and vacuum hose from heater core cover.
9. Remove retaining screw and heater core mounting bracket from heater core cover.
10. Remove heater core from heater core cover.
11. Remove heater core case seal from heater core.

INSTALLATION
1. To install, reverse removal procedure.