Please Try This
I am new to this forum. I would like to ask something of you all please. an experiment of sorts. I have worked on PSD for the past two years and have found something that I would like to test.will cost you nothing but a little diesel and a few minuites of your time. If you choose to participate in the study you will not be paid, other in a smooth running PSD. I want you to sit in your truck for 20 minutes, and exercise your injectors, your HPOP, your IPR, and your ICP. You can turn the radio up, sing along to your fav song, but try this out.
Start your truck cold, let the temp guage come up, and work the throttle of your truck. Rev it like a chainsaw or a weedeter, up and down up and down. I put a little Power Service in the tank but that is up to you. During use, the valves pistons and sensors on your truck move. They move slowly, responding to your pedal inputs. Work them out, polish the sludge off of them,heat them up a little. Up and down vary the RPM across the spectrum. accellerate from idle to governor 1500 to 2500 work that pedal out. I have been doing it to every PSD I have touched, and have yet to have an owner tell me that it didnt start better, idle smoother, and get better fuel mileage. I make no promises that this will fix your problem, but a little exercise never hurt anything. If you try this and it works for you, drop me a line and let me know. Have a good evening