Housing Assembly HVAC: Service and Repair

Heater Core And Evaporator Core Housing





















Removal and Installation

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. Recover the refrigerant. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.

3. Drain the engine cooling system. For additional information, refer to Engine Cooling Cooling System Draining, Filling and Bleeding.

4. Remove the instrument panel. For additional information, refer to Instrument Panel and Console Instrument Panel - Exploded View.

5. Remove the evaporator drain tube.

6. Release the 2 heater hose clamps and disconnect the 2 heater hoses from the heater core.

7. Remove the 2 Evaporative Emission (EVAP) canister purge valve heat shield pin-type retainers and position the shield aside.

8. Disconnect the evaporator outlet fitting.
- Discard the O-ring seals.

9. Disconnect the evaporator inlet fitting.
- Discard the O-ring seals.

10. Remove the 2 exterior heater core and evaporator core housing nuts.
- To install, tighten to 7 Nm (62 lb-in).

11. Remove the 2 interior heater core and evaporator core housing nuts.
- To install, tighten to 7 Nm (62 lb-in).

12. Remove the heater core and evaporator core housing.

13. To install, reverse the removal procedure.
- Install new O-ring seals.

- Add the correct amount of clean PAG oil to the refrigerant system. For additional information, refer to Climate Control System - General Information and Diagnostics Refrigerant Oil Adding.

14. Fill the engine cooling system. For additional information, refer to Engine Cooling Cooling System Draining, Filling and Bleeding.

15. Evacuate, leak test and charge the refrigerant system. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.