Poor Fuel Fill Quality. Chevrolet Chevy C Cab/Chassis HD (GMT 400) 2005

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Poor Fuel Fill Quality

Problem

Causes

Difficult to fill

•	The check valve is stuck closed.

•	The fill limiter vent valve is stuck closed.

•	The evaporative emission (EVAP) canisteris restricted.

•	The EVAP vent valve is stuck closed.

•	The vapor lines are restricted.

•	The reid vapor pressure is high or the fuel temperature is high.

•	The fuel filler hose is pinched or kinked.

•	The ignition is ON.

Over fill

•	The pressure relief valve in the fill limiter vent valve stuck open.

•	The pressure relief valve in the fill limiter vent valve is leaking.

•	The fill limiter vent valve is stuck open.

•	The fill limiter vent valve is leaking.

Premature shut-off of the fuel dispensing nozzle

•	The fill limiter vent valve stuck closed.

•	The EVAP canister restricted.

•	The EVAP vent valve stuck closed.

•	The vapor lines are restricted.

•	The reid vapor pressure is high or the fuel temperature is high.

•	The ignition switch is ON

Fuel Spitback

•	The check valve is stuck open.

•	The check valve is stuck closed.

•	The check valve is leaking.

•	The reid vapor pressure is high or the fuel temperature is high.

Liquid to EVAP canister

•	The fill limiter vent valve is stuck open.

•	The fill limiter vent valve is leaking.

Liquid leak to ground

•	The pressure relief valve in the fill limiter vent valve is stuck open, or leaking.

•	The fuel filler hoseis loose or torn.

•	The fill limiter vent valve is stuck open.

Fuel Odor

•	The pressure relief in the fuel limiter vent valveis stuck open or leaking.

•	The EVAP canisteris saturated.