99 F350 Fuel leak on shutdown

[rotorgoat]

My 99 F350 7.3 starts and runs great but I get a large puddle of fuel on the ground after shutting it off. I just replaced the fuel filter and new drain valve and O-rings but that didn't help the problem. It doesn't leak when it's running - only after shutting it off. Anybody had this problem or know of a fix? One member found a pinhole in the FF housing (mine was clean/no corrosion) and one had a leaking line from the fuel pump. Is the fuel return line is this area?

[rotorgoat]

Originally Posted by rotorgoat

My 99 F350 7.3 starts and runs great but I get a large puddle of fuel on the ground after shutting it off. I just replaced the fuel filter and new drain valve and O-rings but that didn't help the problem. It doesn't leak when it's running - only after shutting it off. Anybody had this problem or know of a fix? One member found a pinhole in the FF housing (mine was clean/no corrosion) and one had a leaking line from the fuel pump. Is the fuel return line is this area?

I was too impatient! Looks like my continued leak was residual fuel laying around in all the nooks and crannies. It finally cleared up and running dry now wothout any leaks.

[big pipe]

if not their is a fuel return line that runs from injector pump to pass side head .it twist and turns and runs under the turbo .on turbo pedestal their is a flat steel strap that holds the line.right on the sides of that clip ,over time it rubs a hole in the lo psi return line.at shutdown it drains out.btw it is a real pain in the *** to do.i had to do mine with a foot of snow on the ground and 15dg.no room to get a wrench on the nut on back side of head.(had to chop up a good snap on to get it)

[rotorgoat]

Thanks big pipe! My "post fix" problem was residual fuel in the "valley". After I mopped it all up she's running dry. Just took it on a 2000 mile road trip and it ran great - no leaking. I'll keep in mind the return line if I have to hunt down another leak.