Condition
| Causes
|
Difficult to fill
|
| • | Fill limiter vent valve stuck closed |
| • | Evaporative emission (EVAP) canister restricted |
| • | EVAP vent valve stuck closed |
| • | Restricted vapor lines |
| • | High reid vapor pressure or high fuel temperature |
| • | Fuel filler hose is pinched or kinked |
| • | Ignition switch ON (vent valve closed) |
|
Over fill
|
| • | Pressure relief valve is stuck open or leaking |
| • | Fill limiter vent valve stuck open or leaking |
|
Pre-mature shut-off of the fuel dispensing nozzle
|
| • | Fill limiter vent valve stuck closed |
| • | EVAP canister restricted |
| • | EVAP vent valve stuck closed |
| • | Restricted vapor lines |
| • | High reid vapor pressure or high fuel temperature |
| • | Ignition switch ON (EVAP vent valve closed) |
|
Fuel Spitback
|
| • | Restricted EVAP canister |
| • | High reid vapor pressure or high fuel temperature |
| • | Ignition switch ON (EVAP vent valve closed) |
|
Liquid to EVAP canister.
|
| • | Fill limiter vent valve stuck open or leaking |
| • | Over filled fuel tank (cramming during fueling) |
|
Liquid leak to ground
|
| • | Pressure relief valve is stuck open, or leaking |
| • | Fuel filler pipe loose or ruptured |
|
Fuel Odor
|
| • | Pressure relief valve stuck open, or leaking |
| • | Saturated EVAP canister |
| • | Seepage from fuel lank |
|
