LS 400 V8-4.0L (1UZ-FE) (1990)
Thermal Vacuum Valve - EVAP: Testing and Inspection
Testing BVSV - Closed Position
- Drain coolant into an approved container.
- Unscrew and remove BVSV.
- Cool BVSV to below 35°C (95°F).
- Blow air into either port and check that air does NOT pass through valve.
Testing BVSV - Open Position
- Heat BVSV to above 56°C (133°F).
- Blow air into either port and check that air does pass, (valve open).
- Replace valve if desired results are not achieved.