HHR L4-2.2L (2007)
Thermostat: Service and Repair
Engine Coolant Thermostat Replacement
Removal Procedure
1. Drain the cooling system.
2. Reposition the radiator outlet hose clamp at the thermostat housing.
3. Remove the radiator outlet hose from the thermostat housing.
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