Thermostat and Thermostat Housing

THERMOSTAT AND THERMOSTAT HOUSING

Removal and Installation












WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

REMOVAL


CAUTION:
Perform when engine is cool.
1.Drain engine coolant from the radiator. Service and Repair.
2.Remove coolant reservoir hose.
3.Remove coolant reservoir tank. Removal and Installation.
4.Disconnect IVT control valve connector.
5.Disconnect radiator hose (lower).





6.Remove engine coolant inlet, thermostat assembly and gasket.
- Do not disassemble engine coolant inlet and thermostat.
Replace them as a unit, if necessary.
- Do not reuse gasket.

INSPECTION AFTER REMOVAL






- Place a thread so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
- The valve opening temperature is the temperature at which the valve opens and the falls from the thread.
- Continue heating. Check the full-open lift amount.
CO
NOTE:
The full-open lift amount standard temperature for the thermostat is the reference value.
- After checking the full-open lift amount, lower the water temperature and check the valve closing temperature.






INSTALLATION

Installation is in the reverse order of removal.





- Install thermostat with jiggle valve facing upward.
- After installation refill engine coolant and check for leaks. Refer to
Service and Repair and Inspection.

CAUTION:
- Do not spill coolant in engine compartment. Use a shop cloth to absorb coolant.
- Do not reuse gasket.