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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (LY7) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. 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 (LY7)  or Draining and Filling Cooling System (L26) .
  2. Remove the generator drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.6L (LY7).
    3. Fig 1: Securing Water Pump Pulley With EN 46104
    GM1342893Courtesy of GENERAL MOTORS CORP.
  3. Use the EN 46104  (1) in order to retain the water pump pulley.
    4. Fig 2: View Of Water Pump Pulley
    GM902876Courtesy of GENERAL MOTORS CORP.
  4. Remove the water pump pulley bolts.
  5. Remove the water pump pulley.
    6. Fig 3: View Of Water Pump
    GM946142Courtesy of GENERAL MOTORS CORP.
  6. Remove the water pump bolts.
  7. Remove the water pump.
  8. Remove and DISCARD the water pump seal.
  9. Carefully clean the water pump sealing surfaces.
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