Fuel System Leak Inspection
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the fuel system for leaks once a year using an electronic or liquid leak detector. If a leak is found, replace the O-ring face seal (ORFS), fuel line, or component as required.