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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 596 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (4.3L, 5.0L, and 5.7L) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable from the battery terminal.
  2. Remove the air cleaner assembly. Refer to one of the following procedures:
  3. Drain the engine cooling system. Refer to Draining and Filling Cooling System .
  4. Remove the air intake duct from the throttle body.
  5. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
  6. Remove the upper fan shroud. Refer to Fan Shroud Replacement .
  7. Remove the fan clutch assembly from the vehicle. Refer to Fan Clutch Replacement .
  8. Remove the drive belt from the vehicle.
    Fig 1: Removing Air Intake Duct
    G01699572Courtesy of GENERAL MOTORS CORP.
  9. Remove the water pump pulley mounting bolts.
  10. Remove the water pump pulley from the water pump.
    Fig 2: Removing Water Pump Pulley Mounting Bolts & Water Pump Pulley
    G01699573Courtesy of GENERAL MOTORS CORP.
  11. Disconnect the radiator outlet hose from the water pump.
    Fig 3: Disconnecting Radiator Outlet Hose
    G01699574Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the by-pass hose from the water pump.
    Fig 4: Disconnecting By-Pass Hose
    G01699575Courtesy of GENERAL MOTORS CORP.
  13. Remove the heater outlet hose from the water pump.
    Fig 5: Removing Heater Outlet Hose
    G01699576Courtesy of GENERAL MOTORS CORP.
  14. Remove the water pump mounting bolts.
  15. Remove the water pump and the gasket.
  16. Clean and inspect the sealing surfaces of the engine block.
  17. Clean the water pump mounting bolts, and inspect the threads for damage.
    Fig 6: Removing Water Pump Mounting Bolts, Water Pump & Gasket
    G01699577Courtesy of GENERAL MOTORS CORP.
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