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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1726 (Engine Cooling) >> Repair Instructions >> Water Pump Replacement (L61) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the coolant. Refer to Draining and Filling Cooling System .
  2. Remove the thermostat housing pipe-to-cylinder bolt near the front of the engine.
    3. Fig 1: Exhaust Heat Shield Bolts (2.2L)
    GM951386Courtesy of GENERAL MOTORS CORP.
  3. Remove the exhaust manifold heat shield and bolts.
    4. Fig 2: Water Pump Access Plate (L61)
    GM896331Courtesy of GENERAL MOTORS CORP.
  4. Remove the water pump access plate from the front cover.
  5. Remove the right hand wheel nuts and wheel assembly.
  6. Remove the right hand inner push-pins and splash shield.
    7. Fig 3: Connecting Electrical Connector To Coolant Sensor (2.2L)
    GM951591Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: A drain plug has been provided at the bottom of the water pump assembly for additional coolant drainage from the engine block and water pump.
  7. Drain the coolant from the plug at the bottom of the water pump.
  8. Disconnect the engine coolant temperature sensor electrical connector.
    9. Fig 4: Draining Coolant From Plug At Bottom Of Water Pump (2.2L)
    GM951404Courtesy of GENERAL MOTORS CORP.
  9. Remove the thermostat housing bolts.
  10. Move the thermostat housing toward the left hand side of the vehicle while twisting the water feed pipe from the rear of the water pump assembly. Leave the coolant hoses and thermostat housing cover connected.
  11. Remove the water feed pipe.
  12. Discard the water pipe seals.
    13. Fig 5: Positioning J 43651
    GM896348Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The water pump holding tool supports the sprocket and chain during water pump service. The tool must be used or the balance shaft must be re-timed.
  13. Install the J 43651  into position. See Special Tools .
  14. Tighten the bolts on the water pump holding tool into the threads on the water pump sprocket.
  15. Install the access cover bolts that were removed earlier to secure the water pump holding tool to the front cover assembly.
  16. Remove the 3 inner water pump sprocket to water pump blots.
    17. Fig 6: 2 Water Pump Assembly Bolts (2.2L)
    GM951420Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be sure to remove both water pump retaining bolts from the front of the engine block.
  17. Remove the 2 water pump assembly bolts.
    18. Fig 7: Rear 2 Water Pump Assembly Bolts (2.2L)
    GM897618Courtesy of GENERAL MOTORS CORP.
  18. Remove the rear 2 water pump assembly bolts.
  19. Remove the water pump assembly and water pump O-seal.
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