I have a 1999 Dodge 2500 Cummins, truck was fine and recently I replaced the Intake Plenum Gasket and replaced my VP return line on there. A few days after that I was driving and noticed the smell of Diesel and I pulled into a gas station and she was leaking. The Fuel Leak looks like its coming from below the 5th Injector or so above the connection of the return line. It's about a 1 drop per second leak, It doesn't looks like its coming from the Injectors, It looks like it's coming from the underside of the plenum housing, It also drips on the drive shaft while its driving which then throws fuel all over the place. I will upload pictures of exact location later when I get a break from work but I have no clue what is in the area that could be leaking and wasn't sure if anyone has dealt with anything in that area before.

 

Also forgot to add, im running a FASS so i deleted both the stock filter housing and the fuel heater. It was installed months ago with no issues so I dont think its related to that

 

Its leaking off the bottom of that rear bolt housing(Looks like some sort of plug). The one behind the electrical plug and dripping onto my return line

 

 

Check and make sure you have the injector line tightened down. Did you replace the orings on the crossover tube?

If that's not the case pull the group of lines and see if the line has split.

 

I did not, what is the crossover tube?

 

It connects the line form the VP to the injector.

 

Okay ill have to give that a look, sounds look it could be a possibility. Assuming ive got to remove valve cover to check that?

 

No its just at the end of the VP lines. You would have had to pull them to get the injectors out.