GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 611039  Size: SH
  1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement .

  2. Object Number: 611035  Size: SH
  3. Remove the thermostat and the gasket from the water pump housing and discard gasket.

Installation Procedure


    Object Number: 611035  Size: SH
  1. Install the thermostat and a new gasket into the water pump housing.
  2. Install the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement .