Join Date: Dec 2012
Location: Delaware County PA
Chasing the fuel smell in the trunk of my S4. Checked the fuel vapor recovery system check valves, which seem to be working correctly. Replaced the fuel fill hose which looked intact but was very hardened. While I was at it replaced the fuel fill boot. AND maybe found the source of the odor when I replaced the fuel tank sending unit gasket. It was very crusty under the gasket on the sending unit flange. Cleaned it all up, new in tank fuel filter sock, new gasket and reassembled. All hoses are in very good shape and clamped tightly. Hope that does it! Letting it air out thoroughly then I’ll close the trunk up and check it in a day or so.