Heater Core: Service and Repair

HEATER CORE REPLACEMENT

REMOVAL PROCEDURE




1. Remove the fuel injector sight shield.
2. Drain the coolant. Refer to Draining and Filling Cooling System in Cooling System.
3. Disconnect both of the heater hoses at the heater core.
4. Remove the lower the floor console, if equipped.
5. Remove the LH and RH instrument panel insulators.

IMPORTANT: Position the heater core outlet cover downward and rearward in order to disconnect the cover from the rear area floor duct assembly.

6. Remove the heater core outlet cover screws.
7. Remove the heater core outlet cover.




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




10. Remove and discard the seats (1, 2, 3) from the heater core cover.




11. Remove and discard the heater core outer seal (5) from the heater core.




12. Remove the heater core line clamp screw (1).
13. Remove the heater core retaining clamp.
14. Remove the heater core pipe retainer clamp screw (2).




15. Remove the heater core from the HVAC lower case.




16. Remove and discard the heater core lower seal (4) from the HVAC case.




17. Remove and discard the heater core center seal (3) from the HVAC case.




18. Remove and discard the heater core upper seal (2) from the HVAC lower case.




19. Remove and discard the heater core side seals (1) from the HVAC lower case.

INSTALLATION PROCEDURE




1. Install the heater core side seals (1) from the HVAC lower case.




2. Install the heater core upper seal (2) from the HVAC lower case.




3. Install the heater core center seal (3) from the HVAC case.




4. Install the heater core lower seal (4) from the HVAC case.




5. Install the heater core from the HVAC lower case.

NOTE: Refer to Fastener Notice in Service Precautions.




6. Install the heater core line clamp screw (2).

Tighten
Tighten the heater core line clamp screw to 1.5 N.m (13 lb in).

7. Install the heater core mounting clip with a screw (1).

Tighten
Tighten the heater core mounting clip screw to 1.5 N.m (13 lb in)




8. Install heater core outer seal (5) to the heater core.




9. Install new seals (1, 2, 3) to the heater core cover.




10. Install the heater core cover.
11. Install the heater core cover screws.

Tighten
Tighten the heater core cover screws to 1.5 N.m (13 lb in).




12. Install the heater core outlet cover.
13. Install the heater core outlet cover screws.

Tighten
Tighten the heater core outlet cover screws to 1.5 N.m (13 lb in).

14. Install the lower the floor console, if equipped.
15. Install the LH and RH instrument panel insulators.
16. Connect both of the heater hoses at the heater core.
17. Refill the coolant. Refer to Draining and Filling Cooling System in Cooling System.
18. Install the fuel injector sight shield.