GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Catera 🢒 Engine 🢒 Engine Controls - 3.0L 🢒 Poor Fuel Fill Quality

Problem

Causes

Difficult to fill
    • The check valve is stuck closed.
    • The fill limiter vent valve is stuck closed.
    • The EVAP canister restricted.
    • The EVAP vent valve is stuck closed.
    • Restricted vapor lines.
    • High reid vapor pressure or high fuel temperature.
    • The fuel filler hose is pinched or kincked.
    • Ignition switch ON.

Over fill
    • The pressure relief valve in fill limiter vent valve is stuck open.
    • The pressure relief valve in fill limiter vent valve is 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 fill limiter vent valve is stuck closed.
    • EVAP canister restricted.
    • The EVAP vent valve is stuck closed.
    • Restricted vapor lines.
    • High reid vapor pressure or high fuel temperature.
    • Ignition Switch ON.

Fuel Spitback
    • The check valve is stuck open.
    • The check valve is stuck closed.
    • The check valve is leaking.
    • High reid vapor pressure or High fuel temperature.

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 fill limiter vent valve is stuck open, or leaking.
    • The fuel filler hose is lose or torn.
    • The fill limiter vent valve is stuck open.

Fuel Odor
    • Pressure relief in fuel limiter vent valve is stuck open, or leaking.
    • Saturated EVAP canister.