Float Test
- Make sure the fuel tank is less than half full.
- Remove the fuel fill cap to relieve fuel tank pressure, then reinstall the cap.
- Disconnect the fuel tank vapor recirculation tube (A), and connect a vacuum pump to the vapor recirculation tube.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Plug the line (B).
- Apply vacuum to the fuel tank vapor recirculation tube.
- If the vacuum holds, replace the fuel tank vapor control valve (see EVAP Canister Replacement
).
- If the vacuum does not hold, the float is OK. Do the valve test.