fuel leak

[stroke this]

the other day i flipped the yellow switch on the fuel filter to drain the water and i shut it back. every since that day when i shut off my truck and come back there is a little diesel under the truck. the switch is for sure shut but the fuel is coming out of the little hose that comes out of that. what could it be?

[Cumminskiller2007]

Something is jammed in the valve clean and open and close Just had to do with mine

[alabamafrog]

Most likely the O-rings have gone bad, it’s a very common problem. You can get new ones for a few bucks, try to find viton instead of buna. It takes a torx bit socket to get it off.

[tennwalkers]

try this engine running open valve for 30 sec. then close the valve should turn easy if not reopen and close several times untill it frees up if it will not free up you will have to rebuild the valve kits are on ebay and are cheap