Was wondering if anyone could tell me where the most likely leaks are on the injector pumps for these trucks. It showed no signs of leaking until a month ago now it leaks alot more than I would ever be comfortable with. Just now getting to look at it, but would kind of like to know where to look to start out, and what parts to look for.

 

A few of the common places would be the fuel screw, throttle shaft, hydraulic head or AFC fuel pin (inside) if dribbling out of the small rubber tube. Just to name a few.

 

Yah, if yours is leaking you should be able to tell us where it is leaking from. Or in my case, I could only pinpoint the basic area because it was a leaking in between the block and pump. Turned out to be a bad oring that could be replaced without removing the pump...but I stripped out a screw trying to do the repair and at that point it was time to remove the pump and overhaul it.