Yukon XL 2500 2WD V8-8.1L VIN G (2004)
Evaporator Core: Service and Repair
Evaporator Core Replacement - Auxiliary
EVAPORATOR CORE REPLACEMENT - AUXILIARY
TOOLS REQUIRED
J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Remove the auxiliary HVAC module (3) from the vehicle. See: Housing Assembly HVAC/Service and Repair
2. Remove the air temperature actuator (1).
3. Remove the stud on the underside of the rear HVAC module between the heater core inlet and outlet pipes (4).
4. Carefully separate the heater core pipe gasket from the module case and remove the heater core pipe retainer.
5. Remove the screws from the HVAC module lower cover.
6. Remove the auxiliary HVAC module lower cover.
