Poor Fuel Fill Quality. Oldsmobile Shelby Series 1 1999

For 1990-2009 cars

Problem | Causes
--- | ---
DEFINITION: Difficulty when refueling the vehicle.

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 EVAP pipes

• | High reid vapor pressure

• | High fuel temperature

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

• | The fuel feed hose, or crossover hose, is pinched, kinked or blocked.

• | The ignition switch is ON.

Over fill

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

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

• | The fill limiter vent valve is stuck open.

• | The fill limiter vent valve is leaking.

Pre-mature shut-off of the fuel dispensing nozzle

• | The check valve is stuck closed.

• | The fill limiter vent valve is stuck closed.

• | The EVAP canister is restricted.

• | The EVAP canister vent solenoid is stuck closed.

• | Restricted EVAP pipes

• | High reid vapor pressure

• | High fuel temperature

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

• | The fuel feed hose, or crossover hose, is pinched, kinked or blocked.

• | The ignition switch is ON.

Fuel spit back

• | The check valve is stuck open.

• | The check valve is stuck closed.

• | The check valve is leaking.

• | High reid vapor pressure

• | 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 is stuck open.

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

• | The fuel filler hose is loose or torn.

• | The fuel feed hose, or crossover hose, is loose or torn.

• | The fill limiter vent valve is stuck open.

Fuel odor

• | 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 EVAP canister is saturated.