GM Service Manual Online
For 1990-2009 cars only

Condition

Cause

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

Preliminary

Perform the Diagnostic System Check--Engine Controls. Refer to Diagnostic System Check - Engine Controls .

Occasional shut-off of the fuel dispensing nozzle

    â€¢ Fill limiter vent valve stuck closed
    â€¢ Restricted evaporative emission (EVAP) canister
    â€¢ EVAP vent valve stuck closed
    â€¢ High reid vapor pressure or high fuel temperature
    â€¢ Fuel filler hose is pinched or kinked

Continual shut-off of the fuel dispensing nozzle

    â€¢ Fill limiter vent valve stuck closed
    â€¢ EVAP canister blocked
    â€¢ EVAP vent valve stuck closed
    â€¢ Restricted or pinched EVAP vapor lines.
    â€¢ Blocked fuel filler hose and/or pipe or fuel fill check valve.

No nozzle shut-off/Over fill

    â€¢ Pressure relief valve is stuck open or leaking.
    â€¢ Fill limiter vent valve stuck open or leaking