Poor Fuel Fill Quality

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Action
DEFINITION: Fuel filling time, as measured against previous filling time, is noticeably longer than expected.
Fuel System Checks	Inspect for the following conditions: A contaminated or clogged fill valve filter. A service interval is not specified for the fill valve filter. Its condition depends on fuel quality. Use of CNG with excessive amounts of contaminants or compressor oil will increase the frequency of service. Service if necessary. A fill line union check valve that is restricted or improperly installed. The check valve flow direction arrow should point towards the fuel tank.

Checks

Action

DEFINITION: Fuel filling time, as measured against previous filling time, is noticeably longer than expected.

Fuel System Checks

Inspect for the following conditions:

A contaminated or clogged fill valve filter. A service interval is not specified for the fill valve filter. Its condition depends on fuel quality. Use of CNG with excessive amounts of contaminants or compressor oil will increase the frequency of service. Service if necessary.
A fill line union check valve that is restricted or improperly installed. The check valve flow direction arrow should point towards the fuel tank.