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Home >> Chevrolet >> 2010 >> Traverse LS, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - Troubleshooting And Diagnosis >> 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, gage 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