Float Test

1. Make sure the fuel tank is less than half full.
2. Remove the fuel fill cap to relieve the fuel tank pressure, then reinstall the cap.




3. Remove the fuel hose joint protector. Disconnect the ORVR vapor recirculation tube, and connect a vacuum pump to the vapor recirculation tube.
4. Plug the pipe.
5. Apply vacuum to the ORVR vapor recirculation tube.
- If the vacuum holds, replace the ORVR vent shut valve.
- If the vacuum does not hold, the float is OK.