Cobalt L4-2.2L (2008)
16. Remove the thermostat housing bolts.
Important: Twist the water transfer pipe while pulling in order to remove it from the water pump.
17. Remove the thermostat from the vehicle.
18. Remove the water transfer pipe from the thermostat housing, if necessary.
19. Remove and discard the water transfer pipe O-ring seals, if necessary.
20. Remove the thermostat cover bolts and cover, if necessary.
21. Remove the thermostat, if necessary.
22. Remove and discard the thermostat cover O-ring seal, if necessary.
23. Remove all debris and thread sealant from the ECT sensor and bolt holes if the housing is being re-used.
Installation Procedure
