Withdrawal
1. Disconnect the battery from the ground.
2. Drain the coolant.
3. Turn away bolts and remove the thermostat.
Installation
6. Install the thermostat with the vent facing up. Replace gasket.
7. Fully open the heater valve.
8. On 4-cylinder Odyssey models, loosen the bleed screw 1/2 turn.
9. Fill with fluid and bleed air while squeezing the upper and lower radiator hoses. Close the fitting.
Thermostat: 1. Contact temperature sensor; 2. Lid; 3. Rubber gasket; 4. Thermostat; 5. Body