Radiator Outlet Hose Replacement Utility 8.1L Engine

1. Drain the cooling system. Refer to.
2. Remove the heater and surge tank hoses from the mounting clip.



3. Squeeze the plastic retainer release tabs.



4. Pull the connection apart.



5. Reposition the surge tank outlet hose clamp at the surge tank.
6. Remove the surge tank outlet hose (2) from the surge tank.



7. Remove the radiator outlet hose from the radiator. Refer to .



8. Reposition the outlet hose clamp the water pump.
9. Remove the outlet hose from the water pump.

1. Install the outlet hose to the water pump.
2. Position the outlet hose clamp to the water pump.



3. Install the surge tank outlet hose (2) from the surge tank.
4. Position the surge tank outlet hose clamp to the surge tank.



5. Install the radiator outlet hose to the radiator. Refer to .



6. Connect the heater and surge tank hoses to the heater core.

Important: Firmly push the quick connect onto the heater core pipe until you hear an audible click.

7. Pull the heater outlet hose to ensure the connection.
8. Install the heater and surge tank hoses to the mounting clip.
9. Fill the cooling system. Refer to.

Radiator Outlet Hose Replacement 4.8L, 5.3L, and 6.0L Engines

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Loosen the air cleaner outlet duct clamps at the following locations:

•	Throttle body

•	Mass air flow (MAF) /intake air temperature (IAT) sensor

3. Remove the radiator inlet hose clip from the outlet duct.
4. Remove the air cleaner outlet duct.



5. Reposition the outlet hose clamp at the water pump.
6. Remove the outlet hose from the water pump.



7. Reposition the outlet hose clamp at the radiator.
8. Remove the outlet hose (6) from the radiator.

1. Install the outlet hose (6) to the radiator.
2. Position the outlet hose clamp at the radiator.



3. Install the outlet hose to the water pump.
4. Position the outlet hose clamp at the water pump.




Important: Align the arrow at the throttle body end of the duct with the throttle body attaching stud.

5. Install the air cleaner outlet duct.
6. Install the radiator inlet hose clip to the outlet duct.
7. Tighten the air cleaner outlet duct clamps at the following locations:

•	Throttle body

•	MAF/IAT sensor

Tighten
Tighten the clamps to 4 N·m (35 lb in).

8. Fill the cooling system. Refer to Cooling System Draining and Filling .