Thermostatic Vacuum Switching Valve Starlet
- Drain coolant from radiator and remove TVSV. Immerse threaded end of valve in container of water with thermometer.
- With water temperature below 106°F (41°C), check that air flows from port "J" to port "N" and from port "L" to port "M". See Fig 1.
- Heat water to above 131°F (55°C). Check that air flows from port "J" to port "K" and from port "L" to port "M".
Starlet and Tercel models only.