Heater Core Case: Service and Repair

Removal

1. Disconnect the battery ground cable.
2. Drain the engine coolant.
3. Discharge and recover refrigerant (with air conditioning).
- Refer to Refrigerant Recovery in this section.

4. Remove the Instrument panel assembly.
- Refer to Instrument Panel Assembly in Body and Accessories section.

5. Remove instrument panel bracket.
- Refer to Cross Beam Assembly in Body and Accessories section.

6. Cross Beam Assembly.
- Refer to Cross Beam Assembly in Body and Accessories section.

7. Disconnect resistor connector.
8. Remove knee bolster bracket
9. Remove duct.
10. Remove evaporator assembly (A/C only).
- Refer to Evaporator Assembly in this section.

11. Remove ventilation lower duct.
12. Remove rear heater duct.
- Remove foot rest, carpet and 3 clips.

13. Remove heater unit assembly.
- Disconnect heater hoses at heater unit.

Installation

To install, follow the removal steps in the reverse order, noting the following points:
1. When handling the PCM and the control unit, be careful not to make any improper connection of the connectors.
2. Adjust the control cables.
- Refer to Control Lever Assembly in this section.

3. When installing the heater unit, defroster nozzle and center vent duct, be sure that the proper seal is made, without any gap between them.