Thermostat Housing Removal and Installation
Thermostat Housing Removal and InstallationRemoval
1. Drain the engine coolant.
2. Remove the air cleaner assembly.
3. Remove the harness bracket (A), and cover the air fuel ratio (A/F) sensor connector and secondary heated oxygen sensor (secondary H02S) connector with a tape to protect the connectors from engine coolant, then disconnect the lower radiator hose (B), the water bypass hoses (C), and the heater hose (D).
4. Remove the thermostat housing.
5. Remove the exhaust gas recirculation (EGR) plate (A), thermostat cover (B), and thermostat (C).
Installation
1. Install the new rubber seal (A) onto the thermostat, then install the thermostat (B) with pin (C) up, and install the thermostat cover (D).
2. Install the EGR plate (E) with a new gasket (F).
3. Install the thermostat housing (A), using a new gasket (B) and new O-ring (C).
4. Install the lower radiator hose (A), heater hose (B), and water bypass hoses (C), then install the harness bracket (D).
5. Install the air cleaner assembly.
6. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater valve open.