Heater Core: Service and Repair

1. Disconnect battery ground cable, then place temperature control lever in Off position and drain cooling system.
2. Remove parcel tray, center ventilation duct and grille and defroster duct.
3. Disconnect heater hoses from heater core. Plug heater core fittings to prevent coolant spillage.
4. Disconnect wire connector from blower motor.
5. Remove upper bolts and center nuts attaching heater assembly to dash panel, then remove heater assembly.
6. Remove heater core from heater assembly.
7. Reverse procedure to install.