Poor Fuel Fill Quality
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
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
- Restricted vapor lines
- 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 occurs immediately after engaging dispensing nozzle, tank empty |
- Faulty dispensing nozzle
- 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
- Fill pipe design concern exists, check with technical assistance
|
| Fuel Spitback |
- Restricted EVAP canister
- High fuel temperature
- Ignition switch ON, EVAP vent valve closed
|