Yeah, I havent done anything to my engine but, I dont really use it for what the truck was built for so I kept it stock. The most I pull with it is my big boat which is, with full tank of gas, 8,500#'s but mostly I pull the bass boat or the ski boat which is really nothing, couple thousand lbs.
I bought it used in 2008 and it was a great truck for a long time until a few months ago. The fuel pump was rebuilt or a new one put in and the mechanic said my fuel pressure is good (I think 56psi?)
Now, I am new to diesels, relative to you guys as this is my first diesel. I will say that if I had this problem on a gas truck, I would suspect it is a transmission issue. The previous owner used it on a hog farm, or near one as I could smell it on the interior for the first few months I owned the truck. It was taken well care of and he never pulled anything too heavy with it.
I have read about problems like this but they say usually the FICM was the culprit so I checked that and got 48.2V and also the EGR was a possibility so I removed that and cleaned it thoroughly (it isnt leaking either).
I am stumped.
I hate to throw parts at problems and pay a mechanic to do something that I can do.
Thank you very much, in advance for helping me through this
Maybe someday I could help someone on this forum