GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1729415  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the oil filter adapter and oil cooler assembly. Refer to Oil Filter Adapter and Oil Cooler Assembly Replacement.
  3. Remove the water pump to water pump outlet pipe nuts (2).
  4. Remove the water pump to water pump outlet pipe studs (1).

  5. Object Number: 1336117  Size: SH
  6. Remove the water pump outlet pipe.
  7. Remove and discard the water pump outlet pipe O-ring and gasket.

Installation Procedure


    Object Number: 1336117  Size: SH
  1. Install a NEW water pump outlet pipe O-ring onto the pipe.
  2. Lubricate the O-ring seal with engine coolant.
  3. Position a NEW water pump outlet pipe gasket to the water pump.
  4. Install the water pump outlet pipe.
  5. Install the oil filter adapter and oil cooler assembly. Refer to Oil Filter Adapter and Oil Cooler Assembly Replacement.
  6. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1729415  Size: SH
  7. Install the water pump to water pump outlet pipe studs (1) and tighten to 20 N·m (15 lb ft).
  8. Install the water pump to water pump outlet pipe nuts (2) and tighten to 25 N·m (18 lb ft).
  9. Lower the vehicle.