GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2009 🢒 Astra 🢒 Engine 🢒 Engine Cooling 🢒 Water Pump Replacement

Removal Procedure
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.

    2. Object Number: 1937017 Size: SH
  2. Remove the water pump strap disc (1).
    3. • Remove the 3 bolts (2).
    • Do not remove.
    • Counterhold against the bolt of the torsional vibration damper.
  3. Raise the vehicle by its full height.
  4. Remove the drive belt. Refer to Drive Belt Replacement.

    5. Object Number: 1936581 Size: SH
  5. Drain the coolant.
    6. • Place a drain pan underneath.
    • Install the suitable hose to the drain connection (2).
    • Open the coolant drain screw (1).
    • Drain the coolant.
    • Close the coolant drain screw.
  6. Lower the vehicle by its full height.
  7. Remove the water pump strap disc.

    8. Remove the 3 bolts.


    Object Number: 1937019 Size: SH
  8. Remove the water pump (2) from the pump module (1).
    9. • Remove the 5 bolts.
    • Remove the water pump.
  9. Clean the sealing surfaces.
  10. Clean the thread.

    11. Clean the 3 water pump threads.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.

  1. Install the water pump.

    2. Use NEW bolts.

    Tighten
    Tighten the 5 bolts to 8 N·m (70 lb in).

  2. Install the water pump strap disc.
    3. • Install the 3 bolts.
    • Use NEW bolts.
  3. Raise the vehicle.
  4. Install the drive belt. Refer to Drive Belt Replacement.
  5. Lower the vehicle.
  6. Install the water pump belt pulley.

    7. Tighten
    Tighten the 3 bolts to 20 N·m (15 lb ft).

  7. Fill and bleed the cooling system. Refer to Cooling System Draining and Filling.
  8. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.