[Coadman]

I have been smelling a fuel leak on my truck for a few days, and tried to track down the source. I have never changed the fuel filter on this truck, so dont know if this is the correct location? Top part of engine, in the middle, a fuel line enters into a plastic cannister. The top of the cannister has a waffle iron type appearence to it. The fuel is seeping out of the top. I unscrewed the lid, but no filter is inside, and just a rubber gasket/o-ring to seal the lid. I re-installed the lid and tightened it as much as I could, but I still see fuel seeping out. Now, this might not be the only location, but there definitely is a leak. What is this cannister, and is a new gasket/o-ring, probably all I need? The truck runs fine, with not hiccups at all. Hopefully someone will reply to this quickly, as I would like to continue my troubleshooting today! The manual that come with the truck, doesnt say anything of much help, just consult your ford mechanic!
thanks,
Jim