Sierra 1500 2WD V6-4.3L VIN X (2004)
4. Connect the heater hose to the heater core.
Firmly push the quick connect onto the heater core pipe until you hear an audible click.
5. Install the air intake tube.
6. Fill the cooling system. Refer to Draining and Filling Cooling System (with HP2)Draining and Filling Cooling System (without HP2) in Cooling
System.
