Sierra 2500 4WD V8-8.1L VIN G (2006)
5. Connect the heater and surge tank hoses to the heater core. Firmly push the quick connect onto the heater core pipe until you hear an audible click.
6. Install the radiator outlet hose to the radiator. Refer to Radiator Hose Quick Connect Fitting.
7. Fill the cooling system. Refer to Draining and Filling Cooling System.
