C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
INSTALLATION PROCEDURE
1. Install the heater core (1) to the HVAC module assembly (2).
2. Install the heater core cowl gasket (1) to the HVAC module assembly (2).
3. Install the heater core cover (1) to the HVAC module assembly (2).
4. Install the screws to the heater core cover (1).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten