I had a fuel leak a while ago. I had a fuel line that was loose at the injector. Dealer replaced the fuel line and have had no problems since. Mine was on the drivers side. The fuel would leak down the block and drip out and run down the frame, tranny and it seamed about everywhere. Quite a mess. The whole underside was coated in fuel along with the sheet metal inside and out from the front wheels back. I could not see the leak from above, but could see it dripping form below.
Might have the dealer check that out.
Good luck.
2002 2500HD DA LS ExC LB 2WD, HOT Juice, Predator 1.04, BANKS Monster Exhaust, Deep Pan Alli, JK HB Kit, TTT Mirror, XM Sony PnP, High Idle w/ PTO Switch, Armacoat Liner, Black like the #3!<a href=\"http://community.webshots.com/user/3and77\" target=\"_blank\">PICS</a>