Housing Assembly HVAC: Service and Repair

HVAC Module Assembly Replacement


REMOVAL PROCEDURE




1. Remove the engine air cleaner.
2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Service and Repair
3. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
4. Remove the cross vehicle beam.
5. Disconnect the A/C lines at the evaporator block fitting.
6. Disconnect the heater hoses at the heater core.
7. Disconnect the vacuum hoses.
8. Disconnect the electrical connectors.

IMPORTANT: Position the heater core outlet cover downward and rearward in order to disconnect the cover from the rear area floor duct assembly.

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




11. Remove the evaporator drain elbow.




12. Remove the HVAC module to dash nuts.




13. Remove the HVAC module.
14. Remove all of the outer HVAC module seals (1,2,3).

INSTALLATION PROCEDURE




1. Install new outer HVAC module seals (1,2,3).




2. Install the HVAC module to the vehicle.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the HVAC module to dash nuts.

Tighten
Tighten the HVAC module nuts to 10 N.m (89 lb in).




4. Install the evaporator drain elbow.




5. Connect the electrical connectors.
6. Connect the vacuum hoses.
7. Install the heater core outlet cover.
8. Install the heater core outlet cover screws.

Tighten
Tighten the heater core outlet cover screws to 1.5 N.m (13 lb in).

9. Install the cross vehicle beam.
10. Connect the heater hoses at the heater core.
11. Fill the cooling system. Refer to Draining and Filling Cooling System.
12. Install the A/C lines at the evaporator block fitting.
13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging. Service and Repair
14. Leak test the A/C system. Refer to Leak Testing.
15. Install the engine air cleaner.