Yukon/Denali XL 1500 2WD V8-6.0L VIN U (2005)
4. Install the heater core to the auxiliary HVAC module.
5. Install the heater core clamp.
6. Install the auxiliary HVAC module lower cover.
7. Install the screws to the HVAC module lower cover.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the screws to 1.6 N.m (14 lb in).
8. Install the heater core pipe retainer and gasket.
9. Install the stud between the heater core inlet and outlet on the underside of the auxiliary HVAC module.
10. Install the air temperature actuator (1).
