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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1864 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (2.2L (L61)) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 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 (Static Fill)  or Draining and Filling Cooling System (GE 47716 Fill) .
  2. Remove the thermostat housing pipe-to-cylinder bolt near the front of the engine.
    3. Fig 1: View Of Exhaust Manifold Heat Shield & Bolts
    GM951386Courtesy of GENERAL MOTORS CORP.
  3. Remove the exhaust manifold heat shield and bolts.
    4. Fig 2: Removing & Installing 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: Locating Engine Coolant Temperature Sensor (L61)
    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: View Of Thermostat Housing Bolts
    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: View Of Water Pump Retaining Bolts
    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: View Of 2 Rear Water Pump Assembly Bolts
    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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