For 1990-2009 cars

Concern | Causes
--- | ---
DEFINITION: Difficulty in refueling the vehicle when equipped with an ORVR fuel system.
Difficult to fill |

• | The check valve is stuck closed.

• | The fill limiter vent valve is stuck closed.

• | The evaporative emission (EVAP) canister is restricted.

• | The EVAP-canister vent solenoid is stuck closed.

• | Restricted vapor lines

• | Fuel with high Reid Vapor Pressure characteristics

• | High fuel temperatures

• | The fuel filler hose or the pipe is pinched, is kinked, or is blocked.

Over-fill |

• | The pressure relief valve in the fill limiter vent valve is stuck open.

• | The pressure relief valve in the fill limiter vent valve is leaking.

• | The fill limiter vent valve is stuck open.

• | The fill limiter vent valve is leaking.

Premature shut-off of the fuel-dispensing nozzle |

• | The fill limiter vent valve is stuck closed.

• | A restricted EVAP canister

• | A stuck-closed EVAP-canister vent solenoid.

• | Restricted fuel vapor lines

• | Fuel with high Reid Vapor Pressure characteristics

• | High fuel temperatures

Fuel Backflow |

• | The check valve is stuck open.

• | The check valve is stuck closed.

• | The check valve is leaking.

• | Fuel with high Reid Vapor Pressure characteristics

• | High fuel temperatures

Liquid fuel in the EVAP canister. |

• | The fill limiter vent valve is stuck open.

• | The fill limiter vent valve is leaking.

Liquid fuel leak |

• | The pressure relief valve in the fill limiter vent valve is stuck open.

• | The pressure relief valve in the fill limiter vent valve is leaking.

• | A torn fuel filler hose or a loose fuel filler hose

• | The fill limiter vent valve is stuck open.

Fuel Odor |

• | Pressure relief in the fuel limiter vent valve stuck open.

• | The pressure relief valve in the fill limiter vent valve is leaking.

• | A fuel-saturated EVAP canister