Thermostat Housing: Service and Repair

Engine Coolant Thermostat Housing Replacement (LY7) (3.6L)

Removal Procedure




1. Partially drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill-LE5, LAT) (Service and Repair)Cooling System Draining and Filling (Static Fill-LY7) (Service and Repair)Cooling System Draining and Filling (GE 47716) (Service and Repair).
2. Remove the radiator outlet hose from the thermostat housing.
3. Remove the heater inlet and outlet hoses.
4. Remove the surge tank outlet hose.
5. Remove the thermostat housing bolts (1).
6. Remove the housing.

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution).

1. Install the thermostat housing bolts and tighten to 10 Nm (89 lb in).
2. Install the surge tank outlet hose.
3. Install the heater inlet and outlet hoses.
4. Install the radiator outlet hose to the thermostat housing.
5. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill-LE5, LAT) (Service and Repair)Cooling System Draining and Filling (Static Fill-LY7) (Service and Repair)Cooling System Draining and Filling (GE 47716) (Service and Repair).