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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 697 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Water Pump Access Plate (L61)
    GM896331Courtesy of GENERAL MOTORS CORP.
  1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement (RPO L61)  or Engine Coolant Thermostat Housing Replacement (RPO LE5)  or Engine Coolant Thermostat Housing Replacement (RPO LSJ) .
  2. Remove the water pump access plate from the front cover.
  3. Remove the right hand fender liner. Refer to Front Fender Liner Replacement .
    4. Fig 2: Locating Water Pump Drain Plug (L61)
    GM964352Courtesy 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.
  4. Drain the coolant from the water pump using the plug at the bottom of the pump.
    5. Fig 3: View Of Water Pump Holding Tool
    GM789912Courtesy 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.
  5. Install the J 43651  into position.
  6. Tighten the bolts on the water pump holding tool into the threads on the water pump sprocket.
  7. Install the access cover bolts that were removed earlier to secure the water pump holding tool to the front cover assembly.
  8. Remove the 3 inner water pump sprocket to water pump blots.
    9. Fig 4: View Of Water Pump Retaining Bolts From Front Of Engine Block (L61)
    GM951420Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be sure to remove both water pump bolts from the front of the engine block.
  9. Remove the 2 water pump bolts.
    10. Fig 5: Identifying Rear Water Pump Bolts
    GM1578334Courtesy of GENERAL MOTORS CORP.
  10. Remove the rear 2 water pump bolts.
    11. Fig 6: View Of Water Pump (L61)
    GM951638Courtesy of GENERAL MOTORS CORP.
  11. Remove the water pump.
  12. Remove and discard the water pump O-ring seal.
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