GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 HHR 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Coolant Thermostat Replacement

Removal Procedure

    Object Number: 1713958 Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Reposition the radiator outlet hose clamp at the thermostat housing.
  3. Remove the radiator outlet hose from the thermostat housing.

    4. Object Number: 1713064 Size: SH
  4. Remove the thermostat housing cover bolts and cover.
  5. Remove the thermostat.
  6. Remove and discard the thermostat housing O-ring seal.

Installation Procedure

    Object Number: 1713064 Size: SH
  1. Install a NEW thermostat housing cover O-ring seal.
  2. Install the thermostat.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the thermostat housing cover bolts.

    4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 1713958 Size: SH
  4. Install the radiator outlet hose to the thermostat housing.
  5. Position the radiator outlet hose clamp at the thermostat housing.
  6. Fill the cooling system. Refer to Cooling System Draining and Filling .