Yukon/Denali 2WD V8-4.8L VIN V (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 from the A/C system.
2. Drain the engine coolant.
3. Raise the vehicle.
4. Disconnect the heater lines (2,3) from the auxiliary HVAC module at the underside of the vehicle.
5. Disconnect the air conditioning lines (2,3) from the auxiliary HVAC module at the underside of the vehicle.
6. Remove the nuts (2) from the studs (1) that secure the auxiliary HVAC module to the underside of the vehicle.
7. Lower the vehicle.
8. Remove the right rear quarter trim panel.
9. Remove the electronic suspension control module.
10. Disconnect the electrical connectors from the Auxiliary HVAC module.
