What if there is diesel dripping from under the motor of a 7.3?

diesel dripping under a 7.3 powerstroke is usually caused by a small filter being clogged on the back side of the fuel filter housing is a small plastic part that will leak i cannot tell you what this part is called ,but this part can be replaced for about 60 bucks and with the use of some small alen keys,and a lot of patience insideis a tiny filter that that clogs up and causes fuel to leak the longer this is left in thei condition, the more fuel will eventually leak out you should also check to make sure fuel is not leaking from the "O" rings where fuel lines are attached at rear of heads these really are a pain to change out and a a specila o ring from ford only