GM Service Manual Online
For 1990-2009 cars only

Special Tools

J-38185 Hose Clamp Pliers

Removal Procedure

Note: Use the J-38185 pliers to gently release tension on the hose clamp until the hose clamp lock feature engages allowing removal of the hose.


    Object Number: 1677957  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Using the J-38185 pliers , release the tension on the hose clamp at the thermostat housing and reposition the clamp.
  3. Remove the radiator outlet hose from the thermostat housing.

  4. Object Number: 1556817  Size: SH
  5. Remove the thermostat housing bolt/stud.
  6. Remove the thermostat housing.

Installation Procedure


    Object Number: 1556817  Size: SH
  1. Position the thermostat housing.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the thermostat housing bolt/stud and tighten to 25 N·m (18 lb ft) .

  4. Object Number: 1677957  Size: SH
  5. Install the radiator outlet hose to the thermostat housing.
  6. Using a small flat-bladed screwdriver, release the hose clamp retention lock at the thermostat housing.
  7. Fill the cooling system. Refer to Cooling System Draining and Filling .