Diesel leak when cold
 

My 99 F350 leaks diesel only when it is cold, I looked underneath and it is dripping down over the starter motor but I cannot see where it is coming from, the valley looks dry?
Has anyone had the same problem?

Turbo Ped. 4 yellow ones Maybe

Yeah I can smell mine in the vent

The fuel drain o rings will leak when it gets cold. Diesel runs in the valley and out the back of the engine. Replacement O-rings for Ford Diesel Engines

http://www.dieselorings.com/docs/FuelDrain.pdf