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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 584 (Engine Cooling System) >> Removal And Installation >> Water Pump Assembly - L61 >> Removal

Water Pump Assembly - L61: Removal

WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain coolant.
  2. Remove thermostat housing pipe-to-cylinder head bolt (near front of engine).
    Fig 1: Draining Coolant
    G01041238Courtesy of GENERAL MOTORS CORP.
  3. Remove exhaust manifold heat shield and bolts.
    Fig 2: Removing Exhaust Manifold Heat Shield And Bolts
    G01041239Courtesy of GENERAL MOTORS CORP.
  4. Remove water pump access plate from front cover.
  5. Remove right hand wheel nuts and wheel assembly.
  6. Remove right hand inner push-pins and splash shield.
    Fig 3: Removing Water Pump Access Plate
    G01041240Courtesy of GENERAL MOTORS CORP.

    IMPORTANT:  A drain plug has been provided at the bottom of the water pump assembly for additional coolant drainage from engine block and water pump.

  7. Drain coolant from plug at bottom of water pump.
  8. Disconnect engine coolant temperature sensor electrical connector.
    Fig 4: Disconnecting Engine Coolant Temperature Sensor Electrical Connector
    G01041241Courtesy of GENERAL MOTORS CORP.
  9. Remove thermostat housing bolts.
  10. Move thermostat housing toward left hand side of vehicle while twisting water feed pipe from rear of the water pump assembly. Leave coolant hoses and thermostat housing cover connected.
  11. Remove water feed pipe.
  12. Discard water pipe seals.
    Fig 5: Removing Thermostat Housing Bolts
    G01041242Courtesy of GENERAL MOTORS CORP.

    IMPORTANT:  Water pump holding tool supports sprocket and chain during water pump service. The tool must be used or the balance shaft chain must be re-timed.

  13. Install Water Pump Holding Tool J43651 into position.
  14. Tighten bolts on water pump holding tool into threads on water pump sprocket.
  15. Install access cover bolts that were removed earlier to secure water pump holding tool to front cover assembly.
  16. Remove three inner water pump sprocket to water pump bolts.
    Fig 6: Installing Access Cover Bolts
    G01041243Courtesy of GENERAL MOTORS CORP.

    IMPORTANT:  Be sure to remove both water pump retaining bolts from front of engine block.

  17. Remove two water pump assembly bolts.
    Fig 7: Removing Two Water Pump Assembly Bolts
    G01041244Courtesy of GENERAL MOTORS CORP.
  18. Remove rear two water pump assembly bolts.
  19. Remove water pump assembly and water pump O-seal.
    Fig 8: Removing Rear Two Water Pump Assembly Bolts
    G01041245Courtesy of GENERAL MOTORS CORP.
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