GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1557687  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 and pulley.

  5. Object Number: 1557689  Size: SH
  6. Remove the water pump bolts, pump, and gasket.
  7. Clean the water pump mating surfaces.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1557689  Size: SH
  1. Install the water pump gasket and pump.
  2. Install the water pump bolts and tighten to 10 N·m (89 lb in) .

  3. Object Number: 1557687  Size: SH
  4. Install the water pump pulley and bolts until snug.
  5. Install the drive belt. Refer to Drive Belt Replacement
  6. Install the water pump pulley bolts and tighten to 25 N·m (18 lb ft) .
  7. Fill the cooling system. Refer to Cooling System Draining and Filling
  8. Inspect for leaks.