You first need to drain the cooling system before starting work on 4.8l, 5.3l, and 6.0l engine Water Pump replacements. You can remove the air cleaner outlet duct by loosening the clamps around
Throttle Body and maf/iat sensor. Take out the outlet duct through the hose connector. You can take down the engine sight shield and radiator vent hose from their clips on the radiator hose if necessary. First move the inlet hose clamp at the Water Pump before taking out the inlet hose then
Fan Blade and accessory
Drive Belt. Unclip the outlet hose barrel then take off the outlet hose plus surge tank outlet hose and heater inlet hose from the Water Pump. You need to remove Water Pump bolts and put out all components including gaskets while discarding old gaskets. Before putting in the Water Pump you should clean any oil residue from its gasket surfaces. Put new gaskets on the Water Pump and place the correct fasteners properly while keeping all fasteners free of paint or lubricant. Start by tightening the Water Pump bolts to 15 nm (11 ft lbs.) then continue to 30 nm (22 ft lbs.). Put back the heater inlet hose and its clamp then attach both surge tank outlet and outlet hoses with their seals. Install the accessory Drive Belt and Fan Blade. Place the inlet hose and its clamp at the engine vent inlet hose before connecting it to the radiator hose holders. Reinstall the engine sight shield by aligning the arrow on the Throttle Body end of the duct with the Throttle Body stud before connecting the air cleaner outlet duct. After mounting the hose clips secure the radiator inlet hose to its exit duct and tighten the air cleaner outlet clamps at Throttle Body and maf/iat sensor with 4 nm (35 inch lbs.) torque.