Heater Core Replacement

Heater Core Replacement

Removal Procedure





1. Remove the HVAC module. Refer to HVAC Module Assembly Replacement (Service and Repair) .
2. Remove and discard the HVAC module assembly foam seal.




3. Disconnect the discharge temperature management (DTM) sensor electrical connectors.
4. Disconnect the HVAC module wiring harness retainer pin (2) from the HVAC module.
5. Disconnect the wiring harness from the heater core cover wire harness retainer (1) and reposition the wiring harness aside.
6. Disconnect the wiring harness from the heater core cover wire harness retainer (3) and reposition the wiring harness aside.




7. Remove the heater cover screws.
8. Remove the heater cover from the HVAC module.




9. Remove the heater core from the HVAC module.



Installation Procedure


Important: Always install new heater core seals onto the heater core.






1. Install a new foam seal to the heater core.




2. Install the heater core to the HVAC module.

Notice: Refer to Fastener Notice .

3. Install the heater cover to the HVAC module.




4. Install the heater cover screws.

Tighten the screws to 1.6 N.m (14 lb in).





5. Reposition the HVAC wiring harness and connect the wiring harness to the heater core cover wiring harness retainer (1).
6. Reposition the HVAC wiring harness and connect the wiring harness to the heater core cover wiring harness retainer (3).
7. Connect the HVAC module wiring harness retainer pin (2) to the HVAC module.
8. Connect the discharge temperature management (DTM) sensor electrical connectors.
9. Install the HVAC module. Refer to HVAC Module Assembly Replacement (Service and Repair) .