GM Service Manual Online
For 1990-2009 cars only

Problem

Causes

Definition: During the fueling process a continual, occasional or no fuel nozzle shut-off condition has occurred.

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)