Housing Assembly HVAC: Service and Repair

HEATER/VENT MODULE REPLACEMENT

REMOVAL PROCEDURE






1. Drain the engine coolant. Refer to Draining and Filling Cooling System in Cooling System.
2. If equipped remove the auxiliary battery.
3. Disconnect the heater hoses.
4. Remove the accumulator.
5. Remove the instrument panel carrier. Service and Repair
6. Remove the HVAC module drain hose.
7. Disconnect the electrical harnesses and the ground connections as needed.






8. Remove the mounting nuts and the screws from the HVAC module.
9. Remove the HVAC module assembly from the vehicle.

INSTALLATION PROCEDURE






1. If you are replacing the HVAC module, transfer the components from the old HVAC module as necessary.
2. Install the HVAC module assembly to the vehicle.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the mounting nuts and the screws to the HVAC module.

Tighten
- Tighten the mounting screws to 4 N.m (35 lb in).
- Tighten the mounting nuts to 9 N.m (80 lb in).






4. Connect the electrical harnesses and the ground connections.
5. Install the HVAC module drain hose.
6. Install the instrument panel carrier.
7. Install the accumulator.
8. Connect the heater hoses.
9. Install the auxiliary battery.
10. Fill the cooling system. Refer to Draining and Filling Cooling System.