Thermostat Housing: Service and Repair

Engine Coolant Thermostat Housing Replacement (1.4L LUV)

Removal Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) Cooling System Draining and Filling (Static Fill)Cooling System Draining and Filling (GE-47716 Fill) Cooling System Draining and Filling (GE-47716 Fill).

2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement Air Cleaner Outlet Duct Replacement.

3. Disconnect the positive crankcase ventilation pipe from the turbocharger. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement Service and Repair.

4. Remove the radiator outlet hose from the engine coolant thermostat housing. Refer to Radiator Outlet Hose Replacement (1.8L LUW and LWE) Radiator Outlet Hose ReplacementRadiator Outlet Hose Replacement (1.4L LUV) Radiator Outlet Hose Replacement.

5. Disconnect the engine coolant temperature sensor wiring harness connector.





6. Remove the engine oil cooler outlet hose clamp (2).

7. Remove the engine oil cooler outlet hose (3) from the engine coolant thermostat housing.

8. Remove the 3 engine coolant thermostat housing bolts (4).

9. Remove the engine coolant thermostat housing (5) and the seal ring (1).

Installation Procedure

1. Clean the sealing surfaces.





2. Install the engine coolant thermostat housing (5) along with a NEW seal ring (1).

Caution:
Refer to Fastener Caution Fastener Caution.

3. Install the 3 engine coolant thermostat housing bolts (4) and tighten to 8 Nm(71 lb in).

4. Install the engine oil cooler outlet hose (3) to the engine coolant thermostat housing.

5. Install the engine oil cooler outlet hose clamp (2).

6. Connect the engine coolant temperature sensor wiring harness connector.

7. Install the radiator outlet hose to the engine coolant thermostat housing. Refer to Radiator Outlet Hose Replacement (1.8L LUW and LWE) Radiator Outlet Hose ReplacementRadiator Outlet Hose Replacement (1.4L LUV) Radiator Outlet Hose Replacement.

8. Connect the positive crankcase ventilation pipe to the turbocharger. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement Service and Repair.

9. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement Air Cleaner Outlet Duct Replacement.

10. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) Cooling System Draining and Filling (Static Fill)Cooling System Draining and Filling (GE-47716 Fill) Cooling System Draining and Filling (GE-47716 Fill).