Tools Required

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.



3. Remove the evaporator hose nut (2) from the evaporator.
4. Remove the evaporator hose (1) from the evaporator.
5. Remove and discard the sealing washers from the evaporator hose (1). Refer to Sealing Washer Replacement .



6. Using the J 37097-A , remove the clamps from the heater hoses (1, 2) at the heater core.
7. Remove the heater hoses (1, 2) from the heater core.



8. Remove the evaporator drain.
9. Plug the heater core and the evaporator core openings to prevent leaking into the vehicle when removing the HVAC module.
10. Remove the dash integration module (DIM). Refer to Dash Integration Module Replacement in Computer/Integrating Systems.
11. Remove the instrument panel (I/P) assembly. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gages, and Console.
12. Remove the defroster duct screws (2).



13. Remove the defroster duct (1).
14. Disconnect the electrical connectors to the HVAC module.



15. Remove the HVAC module retaining nuts.



16. Remove the HVAC module from the vehicle.

1. Install the HVAC module to the vehicle.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the HVAC module retaining nuts.

Tighten
Tighten the nuts to 9 N·m (80 lb in).

3. Install the DIM. Refer to Dash Integration Module Replacement in Computer/Integrating Systems.
4. Reconnect the electrical connectors.



5. Install the defroster duct (1).
6. Install the defroster duct screws (2).

Tighten
Tighten the screws to 1.4 N·m (12 lb in).




7. Install the evaporator drain.
8. Install the I/P assembly. Refer to Instrument Panel Assembly Replacement in Instrument Panel, Gages, and Console.



9. Install the heater hoses (1, 2) to the heater core.
10. Install the clamps to the heater hoses (1, 2).



11. Install new sealing washers to the evaporator hose (1). Refer to Sealing Washer Replacement .
12. Install the evaporator hose (1) to the evaporator core.
13. Install the evaporator hose nut (2) to the evaporator.

Tighten
Tighten the nut to 24 N·m (18 lb ft).

14. Refill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
15. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
16. Leak test the fittings using the J 39400-A .