Heater Core Case: Service and Repair

REMOVAL




1. Disconnect the negative terminal from the battery.
2. Disconnect the engine coolant inlet and the out let hoses from the heater unit.

NOTE: Plug the ends of inlet and outlet hoses immediately after disconnection.




3. Disconnect vacuum source hose from the vacuum nipple of the heater unit.
4. Remove the main crash pad assembly. Refer to Instrument Panel.




5. After removing the RH front heating side duct and turning over the carpet, remove the RH console mounting bracket.




6. After removing the LH front heating side duct and turning over the carpet, remove the LH console mounting bracket.




7. Remove the rear heating if joint duct (RH/LH) from the heater unit.




8. Disconnect connectors from the control modules mounted on the center facia panel support bracket and other interruptive connectors.
9. Remove screws, bolts or nuts from the center facia panel support bracket.




10. Remove the center facia panel support bracket.




11. Remove center support bars.




12. Remove the glove box support bracket.




13. Remove the evaporator unit




14. Remove the heat unit mounting bolt and remove the heat unit.
15. Remove the blower unit.

INSTALLATION

1. Installation is the reverse order of removal.
2. After installation, evacuate, charge and test the air conditioning system.
3. Check that the temperature control cable slides smoothly, the full stroke right to left. If not okay, read just the temperature control cable.