Paseo L4-1497cc 1.5L DOHC (5E-FE) (1992)
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Thermal Vacuum Valve - EVAP: Testing and Inspection
Testing TVV - Closed Position
Testing TVV - Open Position
1. Drain the coolant from the radiator into a suitable container.
2. Unscrew and remove the TVV.
3. Cool the TVV to below 35°C (95°F) with cold water. Fig. 9
4. Blow air into either inlet pipe and check that air does NOT pass through valve.
5. Heat the TVV to above 54°C (129°F) with hot water. Fig. 10
6. Blow air into either inlet pipe and check that air does pass, (valve open).
7. If a problem is found, replace TVV.
8. Apply a suitable sealing compound to the TVV threads and reinstall.
9. Refill the radiator with coolant.