Heater Core: Service and Repair

Heater Core Replacement

Removal Procedure

1. Remove the air cleaner and duct assembly (3.1L only).
2. Remove the fuel injector sight shield (3.8L only).
3. Drain the coolant. Service and Repair
4. Disconnect both of the heater hoses at the heater core. Service and Repair
5. Remove the lower the floor console, if equipped. Service and Repair
6. Remove the left and right instrument panel insulators. Service and Repair





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





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





11. Remove and discard the seals (1,2,3) from the heater core cover.





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





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





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





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





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





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





20. 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.





Notice: Refer to Fastener Notice in Cautions and Notices.

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

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

14. Install the lower the floor console, if equipped. Service and Repair
15. Install the left and right instrument panel insulators. Service and Repair
16. Connect both of the heater hoses at the heater core. Service and Repair
17. Refill the coolant. Service and Repair
18. Install the air cleaner and duct assembly (3.1L only).
19. Install the fuel injector sight shield (3.8L only).