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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.

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

6. Disconnect the accelerator pedal electrical connector.

7. Remove the 2 interior heater core and evaporator core housing nuts.
- To install, tighten to 9 Nm (80 lb-in).

8. Detach the 2 Evaporative Emission (EVAP) canister purge valve heat shield pin-type retainers and remove the shield.

9. Remove the Thermostatic Expansion Valve (TXV) fitting nut and disconnect the fitting.
- Discard the gasket seals.

- To install, tighten to 15 Nm (133 lb-in).

10. Remove the 2 exterior heater core and evaporator core housing nuts.
- To install, tighten to 9 Nm (80 lb-in).

11. Remove the heater core and evaporator core housing.

12. To install, reverse the removal procedure.
- Install new gasket seals.

- Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to Climate Control System - General Information and Diagnostics Specifications.

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

14. 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.

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