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 airflow/intake air temperature (MAF/IAT) sensor

3. Remove the air cleaner outlet duct.



4. Reposition the outlet hose clamp from the water pump.
5. Remove the outlet hose from the water pump.



6. Reposition the outlet hose clamp from the radiator.
7. Remove the outlet hose from the radiator.

1. Install the outlet hose to the radiator.
2. Reposition the outlet hose clamp to the radiator.



3. Install the outlet hose to the water pump.
4. Reposition the outlet hose clamp to 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.

Notice: Refer to Fastener Notice in the Preface section.

7. Tighten the air cleaner outlet duct clamps at the following locations:

•	Throttle body

•	MAF/IAT sensor

Tighten
Tighten the air cleaner outlet duct clamp screws to 7 N·m (62 lb in).

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

Radiator Outlet Hose Replacement 8.1L Engine

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Reposition the outlet hose clamp from the radiator.
3. Remove the radiator outlet hose from the radiator.



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



6. Reposition the outlet hose clamp from the water pump.
7. Remove the outlet hose from the water pump.

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



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



5. Install the radiator outlet hose to the radiator.
6. Reposition the outlet hose clamp to the radiator.
7. Fill the cooling system. Refer to Cooling System Draining and Filling .