G6 V6-3.5L (2009)
Thermostat Housing: Service and Repair
Engine Coolant Thermostat Housing Replacement (LZ4/LZ9) (3.5L, 3.9L)
Removal Procedure
1. Drain the cooling system. Refer to Cooling System Draining and Filling (LY7, LZE, LZ4, LZ9) (See: Service and Repair)Cooling System
Draining and Filling (GE 47716 Fill) (See: Service and Repair)Cooling System Draining and Filling (LE5 Static Fill) (See: Service and Repair).
2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (See: Engine/Tune-up and Engine Performance Checks/Air
Cleaner Housing/Air Cleaner Fresh Air Duct/Hose/Service and Repair/Air Cleaner Outlet Duct Replacement).
3. Reposition the radiator outlet hose clamp at the thermostat housing.
4. Remove the radiator outlet hose from the thermostat housing.
5. Remove the thermostat housing bolt/stud.
6. Remove the thermostat housing and gasket.
7. Clean the gasket surfaces.
