Poor Fuel Fill Quality
| Problem | Causes |
|---|---|
| DEFINITION: During the fueling process a continual, occasional or no fuel nozzle shut-off condition has occurred. | |
| Difficult to fill | • Fuel fill limiter vent valve stuck closed • Evaporative emission (EVAP) canister restricted • EVAP vent valve stuck closed • Hose between canister and canister vent solenoid twisted or kinked if applicable • High fuel temperature • Fuel filler hose is kinked • Faulty dispensing nozzle • Ignition switch ON, vent valve closed |
| Over fill | • Fill limiter vent valve stuck open or leaking • Fuel inlet check valve stuck open |
| Pre-mature shut-off of the fuel dispensing nozzle occurs immediately after engaging dispensing nozzle, tank empty | • Restricted vapor lines or fuel fill pipe • High fuel temperature • Inlet check valve at tank stuck closed, fill pipe full of fuel • Fuel tank full, gage not accurate |
| Pre-mature shut-off of the fuel dispensing nozzle, more than 1/8 of tank capacity dispensed | • Kinked, pinched or plugged lines in fuel tank vent system • EVAP vent valve stuck closed or restricted • EVAP canister restricted • Fuel limiting vent valve stuck closed or obstruction at top of fuel tank |
| Fuel Spitback | • Restricted EVAP canister • High fuel temperature • Ignition switch ON, EVAP vent valve closed |