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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 (RPOs L26/L32) >> Installation Procedure

Installation 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.
    Fig 1: Removing/Installing Water Pump & Gasket (3.8L)
    GM46178Courtesy of GENERAL MOTORS CORP.
  1. Install the gasket and the water pump.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the water pump bolts.

    Tighten: 

    • Tighten the long water pump bolts to 34 N.m (25 lb ft).
    • Tighten the short water pump bolts to 22 N.m (16 lb ft).

    3. Fig 2: View Of Water Pump Pulley And Bolts
    GM46174Courtesy of GENERAL MOTORS CORP.
  3. Install the water pump pulley.
  4. Install the water pump pulley bolts.

    Tighten:  Tighten the bolts to 13 N.m (115 lb in).

  5. Install the power steering pump. Refer to Power Steering Pump Replacement (3.8L) or Power Steering Pump Replacement (LY7) in Power Steering System.
  6. Install the drive belt. Refer to Drive Belt Replacement (L26) in Engine Mechanical - 3.8L.
  7. Install the accessory wiring junction block.
  8. Fill the cooling system. Refer to Draining and Filling Cooling System (LY7)  or Draining and Filling Cooling System (L26) .
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