Heater Core: Service and Repair

Heater Core Replacement

Removal Procedure





Caution: Refer to Battery Disconnect Caution Battery Disconnect Caution s.

1. Disconnect the negative battery cable.
2. Remove the instrument panel. Refer to Instrument Panel Assembly Replacement Instrument Panel Assembly Replacement.
3. Recover the refrigerant.
4. Remove the heater/air distributor case assembly. Refer to HVAC Module Assembly Replacement Service and Repair.
5. Remove the wiring harness and electrical connectors from the heater/air distributor case assembly.
6. Remove the screws that connect the heater core housing and the evaporator housing.




7. Separate the sponge from heater/air distributor case assembly.




8. Remove the heater core cover screws from the heater core housing.
9. Remove the heater core.

Installation Procedure




1. Install the heater core into the case.

Notice: Refer to Fastener Notice Fastener Notice.

2. Install the screws on the heater core housing.

Tighten the heater core cover screws to 1.2 Nm (11 lb in).

3. Install the sponge onto the heater/air distributor case assembly.




4. Install the screws that connect the heater core housing and the evaporator housing.

Tighten the screws to 1.2 Nm (11 lb in).

5. Connect the wiring harness and electrical connectors.
6. Install the heater/air distributor case assembly. Refer to HVAC Module Assembly Replacement Service and Repair.
7. Install the instrument panel. Refer to Instrument Panel Assembly Replacement Instrument Panel Assembly Replacement.
8. Fill the cooling system. Refer to Draining and Filling Cooling System Service and Repair.
9. Evacuate and recharge the refrigerant. Refer to Refrigerant Recovery and Recharging Service and Repair.
10. Connect the negative battery cable.