GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.

  1. Remove the bolt from the coolant recovery reservoir and reposition.

  2. Object Number: 370076  Size: SH
  3. Remove air cleaner assembly.
  4. Remove the radiator outlet hose. Refer to Radiator Outlet Hose Replacement .
  5. Remove the water pump inlet bolts.
  6. Remove the water pump inlet and thermostat from the water pump.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 370076  Size: SH
  1. Install the thermostat and water pump inlet to the water pump.
  2. Install the water pump inlet bolts.
  3. Tighten
    Tighten the water pump inlet bolts to 15 N·m (11 lb ft).

  4. Install the radiator outlet hose. Refer to Radiator Outlet Hose Replacement .
  5. Install the air cleaner assembly.
  6. Install the coolant recovery reservoir and bolt.
  7. Tighten
    Tighten the bolt to 11 N·m (97 lb in).