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Home >> Chevrolet >> 2015 >> Camaro LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls And Fuel - 6.2L (L99 LS3 LSA) Or 7.0L (LS7) - DTC P0335 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Poor Fuel Fill Quality

Poor Fuel Fill Quality

WARNING: This page is about a different variant/trim than selected.
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.
  • Restricted EVAP pipes.
  • High Reid vapor pressure.
  • High fuel temperature.
  • The fuel filler hose/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.
  • Restricted EVAP pipes.
  • High Reid vapor pressure.
  • High fuel temperature.
  • The fuel filler hose/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.
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