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Water Pump: Removal

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect both negative battery cables from the batteries. Drain the engine cooling system. See DRAINING & FILLING COOLING SYSTEM  under ADJUSTMENTS & INSPECTIONS.
  2. Remove the air cleaner assembly from the vehicle. Remove the air intake duct from the turbocharger. Remove the surge tank from the vehicle. Remove the upper fan shroud from the radiator.
  3. Remove the fan clutch from the water pump pulley. Remove the drive belt from the vehicle. See DRIVE BELT . Remove the water pump pulley mounting bolts. Remove the water pump pulley from the water pump.
  4. Disconnect the radiator outlet hose from the water pump. Disconnect the by-pass hose from the water pump. Remove the generator mounting bracket from the engine block. Remove the engine lift bracket from the engine block. See ENGINE LIFT BRACKETS .
  5. Remove the water pump mounting bolts. See Fig 1. Remove the water pump assembly from the engine front cover. Remove the bolts from the back of the water pump backing plate. See Fig 1. Remove the water pump from the backing plate.
  6. Remove the gasket from the water pump backing plate. Clean and inspect the gasket sealing surfaces of the engine front cover and water pump backing plate. Clean all the water pump mounting bolts.
Fig 1: Water Pump & Backing Plate
G98D07036Courtesy of GENERAL MOTORS CORP.
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