Heater Core: Service and Repair

HEATER CORE REPLACEMENT

REMOVAL PROCEDURE

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.




1. Disconnect the negative battery cable.
2. Partially drain the coolant. Refer to Draining and Filling Cooling System in Cooling System.
3. Remove the instrument panel compartment.
4. Remove the right sound insulator.
5. Remove the heater and A/C programmer.
6. Disconnect the driver air mix actuator (2).
7. Disconnect the passenger air mix actuator (3).



8. Remove the heater core cover.
9. Remove the inlet and outlet heater hoses from the heater core.



10. Remove the heater retaining screws.
11. Remove the heater core.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.




1. Install the heater core to the heater case with two screws.

Tighten
Tighten the screws to 2 N.m (18 lb in).




2. Install the inlet and outlet heater hoses to the heater core.



3. Install the heater core cover and screws.

Tighten
Tighten the screws to 2 N.m (18 lb in).

4. Connect the passenger air mix actuator (3).
5. Connect the driver air mix actuator (2).
6. Install the heater and A/C programmer.
7. Install the instrument panel compartment.
8. Install the right sound insulator.
9. Connect the negative battery cable.
10. Refill the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
11. Adjust the air mix valve. Refer to Temperature Valve Link Adjustment - Driver and Temperature Valve Replacement - Passenger.