GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN 46104 Water Pump Pulley Holding Tool

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the drive belt. Refer to Drive Belt Replacement .
  3. Remove the right engine strut mount. Refer to Engine Mount Strut Replacement - Right Side .
  4. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .

  5. Object Number: 1412158  Size: SH
  6. Use the EN 46104 tool in order to retain the water pump pulley.

  7. Object Number: 1412160  Size: SH
  8. Remove the water pump pulley bolts.
  9. Remove the water pump pulley.

  10. Object Number: 1412162  Size: SH
  11. Remove the water pump bolts.
  12. Remove the water pump.
  13. Remove and DISCARD the water pump seal.
  14. Carefully clean the water pump sealing surfaces.

Installation Procedure


    Object Number: 1412162  Size: SH
  1. Install a NEW water pump seal.
  2. Install the water pump.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the water pump bolts and tighten to 10 N·m (89 lb in) .

  5. Object Number: 1412160  Size: SH
  6. Install the water pump pulley and the water pump pulley bolts.

  7. Object Number: 1412158  Size: SH
  8. Use the EN 46104 tool in order to retain the water pump pulley.
  9. Install the water pump pulley bolts and tighten to 10 N·m (89 lb in) .
  10. Install the right engine strut mount. Refer to Engine Mount Strut Replacement - Right Side .
  11. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .
  12. Install the drive belt. Refer to Drive Belt Replacement .
  13. Fill the cooling system. Refer to Cooling System Draining and Filling .