Float Test
- Make sure the fuel tank is less than half full.
- Remove the fuel fill cap to relieve the fuel tank pressure, then reinstall the cap.
- Remove the fuel hose joint protector. Disconnect the ORVR vapor recirculation hose, and connect a vacuum pump to the vapor recirculation hose.
- Plug the hose port.
- Apply vacuum to the ORVR vapor recirculation hose.
- If the vacuum holds, replace the ORVR vent shut valve (see ORVR VENT SHUT VALVE REPLACEMENT ).
- If the vacuum does not hold, the float is OK.