Heater Core: Service and Repair

Heater Core

Removal and Installation

1. NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle. For additional information, refer to Climate Control System - General Information and Diagnostics Climate Control System

Remove the evaporator core housing. For additional information, refer to Evaporator Core Housing Evaporator Core Housing.

2. Remove the instrument panel. For additional information, refer to Instrument Panel and Console Instrument Panel.

3. Remove the PCM. For additional information, refer to Electronic Engine Controls Service and Repair.

4. Remove the PCM heat sink.

1. Remove the ground strap screw.

2. Remove the heat sink.





5. Remove the 4 nuts from the engine side of the dash panel. Position the plenum chamber on the vehicle floor.
- To install, tighten to 4 Nm (35 lb-in).





6. Remove the heater core cover.

1. Remove the screws.

2. Remove the heater core cover.





7. Remove the heater core.





8. To install, reverse the removal procedure.
- During installation, be sure to install a new oval foam seal around the heater core inlet and outlet tubes.