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For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Lucerne 🢒 Engine 🢒 Engine Cooling 🢒 Water Pump Replacement

Water Pump Replacement LD8

Removal Procedure

    Object Number: 1564175 Size: SH
  1. Remove the water pump housing. Refer to Engine Coolant Crossover Pipe Replacement .
  2. Remove the water pump cover bolt/studs.
  3. Remove the water pump cover.

    4. Object Number: 1564207 Size: SH
  4. Remove the water pump bolts.
  5. Remove the water pump.

    6. Object Number: 1564167 Size: SH
  6. Remove and discard the water pump O-ring seal.

Installation Procedure

    Object Number: 1564167 Size: SH
  1. Install a NEW water pump O-ring seal.

    2. Object Number: 1564207 Size: SH
  2. Install the water pump.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the water pump bolts.

    4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1564175 Size: SH
  4. Install the water pump cover.

    5. Object Number: 682832 Size: SH

    Important: Ensure that the bolt is installed in the lower inboard position (1) and the studs are installed in the remaining positions (2).

  5. Install the water pump cover bolt/studs.

    6. Tighten
    Tighten the bolt/studs to 10 N·m (89 lb in).

  6. Install the water pump housing. Refer to Engine Coolant Crossover Pipe Replacement .

Water Pump Replacement L26

Tools Require

J 45059 Angle Meter

Removal Procedure

    Object Number: 1686600 Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Loosen the water pump pulley bolts.
  3. Remove the drive belt. Refer to Drive Belt Replacement .
  4. Remove the water pump pulley bolts.
  5. Remove the water pump pulley.

    6. Object Number: 282122 Size: SH
  6. Remove the power steering pump bolts and reposition the pump.

    7. Object Number: 1686603 Size: SH
  7. Remove the water pump bolts.
  8. Remove the water pump.
  9. Remove the water pump gasket.
  10. Clean and inspect the water pump mating surfaces.

Installation Procedure

    Object Number: 1686603 Size: SH
  1. Install the water pump gasket.
  2. Install the water pump.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the water pump bolts.

    4. Tighten
    Tighten the bolts to 15 N·m (11 lb ft) plus an additional 80 degrees using J 45059 .


    Object Number: 282122 Size: SH
  4. Position the power steering pump and install the bolts.

    5. Tighten
    Tighten the bolts to 34 N·m (25 lb ft).


    Object Number: 1686600 Size: SH
  5. Install the water pump pulley.
  6. Install the water pump pulley bolts until snug.
  7. Install the drive belt. Refer to Drive Belt Replacement .
  8. Tighten the water pump pulley bolts.

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

  9. Fill the cooling system. Refer to Cooling System Draining and Filling .