Removal (Auxiliary Suburban/Yukon XL)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Recover the refrigerant from the A/C system. See RECOVERY, EVACUATION & RECHARGING in GENERAL SERVICING PROCEDURES article in GENERAL SERVICING. Drain the engine coolant. Raise the vehicle.
- Disconnect the heater lines from the auxiliary HVAC module at the underside of the vehicle. See Figure. Disconnect the air conditioning lines from the auxiliary HVAC module at the underside of the vehicle. See Figure.
- Remove the nuts from the studs that secure the auxiliary HVAC module to the underside of the vehicle. See Fig 1. Remove the safety stands. Lower the vehicle. Remove the right rear quarter trim panel.
- Remove the electronic suspension control module. Disconnect the electrical connectors from the auxiliary HVAC module. Remove the fastener for the upper auxiliary air duct. Carefully slide the duct up, into the headliner, until the bottom edge of the duct is above the air distributor duct. See Fig 2.
- Remove the fastener for the lower auxiliary air outlet. See Fig 3. Remove the fastener for the air distributor duct. Remove the air distributor duct. See Fig 4.
- Remove the fasteners retaining the auxiliary HVAC module to the vehicle. Remove the auxiliary HVAC module from the vehicle. See Figure.