Housing Assembly HVAC: Service and Repair

HVAC Module Assembly Replacement

Tools Required

* J43181 Heater Line Quick Connect Release Tool
* J39400-A Halogen Leak Detector

Removal Procedure

1. Drain the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) Draining and Filling Cooling System (Vac N Fill).
2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
3. Remove the instrument panel (I/P) carrier.




4. Release the heater hose clamps using J43181.
5. Disconnect the heater hose quick connects (2) and (3) from the heater core.




6. Remove the retaining nut from the TXV stud.
7. Remove the evaporator tube and suction hose from the TXV.
8. Remove the radio antenna from the HVAC module.
9. Reposition the carpet.
10. Remove rear floor duct.
11. Remove the HVAC module retaining nuts from the cowl.
12. Remove the HVAC module assembly.

Installation Procedure

1. Install the HVAC module assembly.
2. Install the HVAC module retaining nuts from the cowl.

Notice: Refer to Fastener Notice.

3. Tighten the HVAC module retaining nuts.

Tighten the nut to 4.5 N.m (40 lb in).




4. If replacing the HVAC module assembly (8), transfer the components from the old HVAC module assembly as necessary.
5. Install the HVAC module assembly (8).
6. Install rear floor duct.
7. Reposition the carpet.
8. Install the radio antenna to the HVAC module.




9. Connect the heater hose quick connects (2) and (3) to the heater core.
10. Install the evaporator tube and suction hose to the TXV.
11. Install the retaining nut to the TXV stud.
12. Tighten the retaining nut.

Tighten the nut to 4.5 N.m (40 lb in).

13. Install the I/P carrier.
14. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
15. Leak test the fittings of the components using the J39400-A.
16. Refill the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) Draining and Filling Cooling System (Vac N Fill).