Concern
| Causes
|
DEFINITION: Difficulty
when refueling the vehicle.
|
Difficult to fill
|
• | The fuel filler pipe check valve is stuck closed. |
• | The fill limiter vent valve (FLVV) is stuck closed. |
• | The evaporative emission (EVAP) canister drain hose is blocked or restricted. |
• | The EVAP canister drain line check ball is stuck closed. |
• | Any restricted vapor lines or hoses |
• | The EVAP canister is restricted. |
• | A fuel with high reid vapor pressure characteristics. |
• | A high fuel temperature |
• | The fuel filler hose/pipe is pinched, kinked, or blocked. |
|
Over fill
|
• | The pressure relief valve in the fill limiter vent valve (FLVV) is stuck open. |
• | The pressure relief valve in the FLVV is leaking. |
• | The FLVV is stuck open. |
|
Pre-mature
shut-off of the fuel dispensing nozzle
|
• | The fill limiter vent valve (FLVV) is stuck closed. |
• | The evaporative emission (EVAP) canister drain hose is blocked or restricted. |
• | The EVAP canister drain line check ball is stuck closed. |
• | Any restricted vapor lines or hoses |
• | The EVAP canister is restricted. |
• | A fuel with high reid vapor pressure characteristics |
• | A high fuel temperature |
|
Fuel spitback
|
• | The fuel filler pipe check valve is stuck open. |
• | The filler pipe check valve is stuck closed. |
• | The filler pipe check valve is leaking. |
• | A fuel with high reid vapor pressure characteristics. |
• | A high fuel temperature |
|
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 (FLVV) is stuck open. |
• | The pressure relief valve in the FLVV is leaking. |
• | The fuel filler hose is loose or torn. |
• | The FLVV is stuck open. |
|
Fuel
odor
|
• | The pressure relief valve in the fuel limiter vent valve (FLVV) is stuck open. |
• | The pressure relief valve in the FLVV is leaking. |
• | The EVAP canister is saturated with fuel. |
|