Thermal Vacuum Valve - EVAP: Testing and Inspection

1. DRAIN ENGINE COOLANT.
2 REMOVE TVV FROM INTAKE MANIFOLD.
3. INSPECT TVV OPERATION.



- Cool the TVV to below 4O°C (104°F) with cool water.
- Check that air does not flow from the upper port to lower port.




- Heat the TVV to above 59°C (138°F) with hot water.
- Check that air flows from the upper port to lower port.

- If operation is not as specified, replace the TVV.

4. REINSTALL TVV.



- Apply adhesive to 2 or 3 threads of the TVV, and install it.
- (Adhesive: Part No. 08833-00070, THREE BOND 1324 or equivalent)

Torque: 30 Nm (22 ft.lb)

5. REFILL WITH ENGINE COOLANT.