Fuel Pipe O-Rings
WARNING: This page is about a different car, the 2005 GMC Safari and 2005 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
O-rings seal the threaded connections in the fuel system. The fuel system O-ring seals are made of special material. Service the O-ring seals with the correct service part.