Yukon Denali 4WD V8-6.0L Hybrid (2011)
6. Remove the auxiliary heater pipes (1, 2) from the heater inlet and outlet tees (3, 4) at the HVAC module.
7. Remove the vehicle right assist step. Refer to Assist Step Replacement .
Remove both of the right tires. Refer to Tire and Wheel Removal and Installation See: Maintenance/Wheels and Tires/Service and Repair.
8. Remove the right rear wheelhouse panel. Refer to Rear Wheelhouse Panel Liner Replacement .
9. Remove the right front wheelhouse panel. Refer to Front Wheelhouse Liner Replacement - Right Side See: Body and Frame/Fender/Front
Fender/Front Fender Liner/Service and Repair/Front Wheelhouse Liner Replacement - Right Side.
10. Remove the auxiliary heater pipes (2, 3) from the auxiliary heater core.
11. Remove the heater/A/C tubes retaining nut (4) from the stud (1) at the frame (6).
12. Remove the auxiliary heater pipes (2) from the clamps (5).
13. Remove the auxiliary heater pipes from the vehicle.
Installation Procedure
Note: The replacement A/C and heater pipes are shipped in two sections and spliced together upon installation. Refer to Auxiliary Heater and Air
Conditioning Pipe Repair See: Hose/Line HVAC/Service and Repair/Procedures.
1. Install the auxiliary heater pipes to the vehicle.
