GM Service Manual Online
For 1990-2009 cars only

    Object Number: 746068  Size: SH
  1. Remove the engine coolant temperature sensor.

  2. Object Number: 856306  Size: SH
  3. Remove the water pipe support bracket and bolts.

  4. Object Number: 746070  Size: SH
  5. Remove the thermostat and water feed pipe retaining bolts.
  6. Important: Twist the water feed pipe while pulling to remove it from the water pump cover.

  7. Remove the thermostat housing and water feed pipe from the water pump cover.

  8. Object Number: 412423  Size: SH
  9. Remove the water pump retaining bolts. Be sure to remove the bolt that goes through the front of the engine block.
  10. Remove the water pump assembly.

Removal Procedure


    Object Number: 895897  Size: SH
  1. Remove the engine coolant temperature sensor.

  2. Object Number: 895532  Size: SH
  3. Remove the thermostat and water feed pipe retaining bolts.
  4. Important: Twist the water feed pipe while pulling to remove it from the water pump.

  5. Remove the thermostat housing and water feed pipe from the water pump.

  6. Object Number: 895535  Size: SH

    Important: Be sure to remove the bolt that goes through the front of the engine block.

  7. Remove the water pump retaining bolts.
  8. Remove the water pump assembly.