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Poor Fuel Fill Quality

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

Hose between canister and canister vent solenoid twisted or kinked if applicable

High fuel temperature

Fuel filler hose is kinked

Faulty dispensing nozzle

Ignition switch ON, vent valve closed


Over fill
Fill limiter vent valve stuck open or leaking

Fuel inlet check valve stuck open


Pre-mature shut-off of the fuel dispensing nozzle occurs immediately after engaging dispensing nozzle, tank empty
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, gauge 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


Fuel Spitback
Restricted EVAP canister

High fuel temperature

Ignition switch ON, EVAP vent valve closed