Housing Assembly HVAC: Service and Repair

HVAC MODULE ASSEMBLY REPLACEMENT

TOOLS REQUIRED
- J 38185 Hose Clamp Pliers
- J 39400-A Halogen Leak Detector
- J 37097-A Heater Hose Clamp Tool

REMOVAL PROCEDURE
1. Recover the refrigerant.
2. Drain the engine coolant.




3. Remove the accumulator and evaporator tube nut.




4. Disconnect the hose connections from the evaporator.




5. Remove the heater hoses from the heater core using the J 37097-A
6. Plug the heater core and evaporator openings to prevent leaking into the vehicle when removing the HVAC module assembly.
7. Remove the IP assembly.




8. Remove the defroster duct screws.
9. Remove the defroster duct.




10. Disconnect the blower control module (1) electrical connector.
11. Disconnect the instrument panel to HVAC harness connector.




12. Remove the HVAC module retaining nuts (1-5).
13. Remove the HVAC module assembly.

INSTALLATION PROCEDURE




1. Install the HVAC module assembly.
2. Install the HVAC module nuts to the dash (1-5).

NOTE: Refer to Fastener Notice in Service Precautions.

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




3. Connect the blower control module (1) electrical connector.
4. Connect the instrument panel to HVAC module electrical connector.
5. Install the defroster duct.




6. Install the module mounting screws.

Tighten
Tighten the screws to 2.5 N.m (23 lb in).

7. Install the defroster duct to front of dash mounting nut.

Tighten
Tighten the nut to 9 N.m (65 lb in).

8. Install the IP assembly.




9. Connect the heater hoses to the heater core using the J 38185.




10. Connect the evaporator and accumulator tube connections to the evaporator.




11. Install the evaporator tube nut.

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

12. Evacuate and recharge the A/C system.
13. Leak test the component fittings using the J 39400-A.
14. Refill the engine coolant.