Rainier AWD L6-4.2L VIN S (2005)
Housing Assembly HVAC: Service and Repair
HVAC Module Assembly Replacement - Auxiliary
HVAC MODULE REPLACEMENT - AUXILIARY
TOOLS REQUIRED
J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Drain the cooling system. Refer to Draining and Filling Cooling System (LL8) Draining and Filling Cooling System (LM4) in Cooling System.
3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
4. Remove the nuts (3) from rear A/C line block fittings.
5. Remove the A/C line block fittings and discard the O-ring seals.
IMPORTANT: Cap or tape the open A/C refrigerant lines immediately.
6. Remove the nuts from the heater hoses block fittings.
7. Remove the heater hoses block fittings from the HVAC module-auxiliary.
8. Remove the nuts from the HVAC module studs.
9. Lower the vehicle.
10. Remove the right side rear quarter trim.
11. Disconnect the electrical connectors from the HVAC module.
12. Disconnect the rear compartment air outlet ducts (5) from the HVAC module (3).
