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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 907 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (4.3L) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM  .
  2. Loosen the water pump pulley bolts.
  3. Remove the cooling fan and clutch assembly.

    Refer to FAN CLUTCH REPLACEMENT  .

  4. Remove the drive belt. Refer to DRIVE BELT REPLACEMENT in Engine Mechanical - 4.3L.
  5. Remove the water pump pulley mounting bolts.
  6. Remove the water pump pulley.
    Fig 1: Removing Water Pump Pulley
    G01978182Courtesy of GENERAL MOTORS CORP.
  7. Remove the radiator outlet hose clamp from the water pump.
  8. Remove radiator outlet hose from the water pump.
    Fig 2: Removing Radiator Outlet Hose From Water Pump
    G01978183Courtesy of GENERAL MOTORS CORP.
  9. Remove the water pump mounting bolts.
    Fig 3: Removing Water Pump Mounting
    G01978184Courtesy of GENERAL MOTORS CORP.
  10. Remove the water pump from the engine.
    Fig 4: Removing Water Pump From Engine
    G01978185Courtesy of GENERAL MOTORS CORP.
  11. Remove the water pump gaskets.
  12. Clean the water pump gasket mating surfaces.
    Fig 5: Removing Water Pump Gaskets
    G01978186Courtesy of GENERAL MOTORS CORP.
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