GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

DEFINITION: Difficulty when refueling the vehicle.

Difficult to fill

    • Restricted vent lines
    • The evaporative emission (EVAP) vent valve is stuck closed
    • High fuel temperature
    • Condition with the internal components of the fuel tank assembly

Over fill

Condition with the internal components of the fuel tank assembly

Pre-mature shut-off of the fuel dispensing nozzle

    • The EVAP vent valve is stuck closed
    • Restricted vent lines
    • High reid vapor pressure or high fuel temperature
    • Condition with the internal components of the fuel tank assembly

Fuel Spitback

    • High reid vapor pressure or high fuel temperature
    • Condition with the internal components of the fuel tank assembly

Fuel Odor

    • Saturated EVAP canister
    • Condition with the internal components of the fuel tank assembly