K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
Housing Assembly HVAC: Service and Repair
HVAC Module Assembly 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. Refer to Vehicle Lifting.
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.
