GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure


    Object Number: 1664571  Size: SH
  1. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement.
  2. Drain the cooling system. Refer to Cooling System Draining and Filling.
  3. Using the J 38185 , reposition the radiator outlet hose clamp (1) at the thermostat housing.
  4. Remove the radiator outlet hose (2) from the thermostat housing.

  5. Object Number: 611039  Size: SH
  6. Remove the thermostat housing bolts.

  7. Object Number: 611035  Size: SH
  8. Remove the thermostat housing, thermostat, and gasket from the water pump housing.
  9. Discard the old thermostat housing gasket.

Installation Procedure


    Object Number: 611035  Size: SH
  1. Install a NEW thermostat housing gasket into the water pump housing.
  2. Install the thermostat into the water pump housing.
  3. Install the thermostat housing.
  4. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 611039  Size: SH
  5. Install the thermostat housing bolts.
  6. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1664571  Size: SH
  7. Install the radiator outlet hose (2) to the thermostat housing.
  8. Using the J 38185 , position the radiator outlet hose clamp (1) at the thermostat housing.
  9. Fill the cooling system. Refer to Cooling System Draining and Filling.
  10. Install the air cleaner. Refer to Air Cleaner Assembly Replacement.