Removal Procedure

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Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM
Remove the drive belt. Refer to DRIVE BELT REPLACEMENT -- ACCESSORY in Engine Mechanical - 8.1 L.
Remove the fan clutch. Refer to FAN CLUTCH REPLACEMENT .
Position the outlet hose clamp at the water pump.
Remove the outlet hose from the water pump.

Fig 1: Removing Outlet Hose From Water Pump
Courtesy of GENERAL MOTORS CORP.
Position the bypass hose clamps at the water pump and water crossover.
Remove the bypass hose.

Fig 2: Removing Bypass Hose
Courtesy of GENERAL MOTORS CORP.
Remove the water pump bolts.
Remove the water pump.
Remove and discard the water pump gaskets.

Fig 3: Removing Water Pump
Courtesy of GENERAL MOTORS CORP.