Engine/Transmission (1994 - 1998) Truck fixed and KDP fixed.

[P-38]

A little story about a bad miss at idle and how I fixed it.



Just out of the blue my truck started idling really rough with low RPM, after researching in great detail, here is what I did.



1. Ran two complete tanks of fuel out with triple additive. NO EFFECT



2. Checked my overflow valve spring, it should be . 550, It was . 44 so I stretched it. No difference



3. Installed a fuel pressure gauge. Pressure was 28 lbs at idle.



NO IM REALLY SCRATCHING MY HEAD.



4. Cracked open my lines at the injectors one at a time while idling, AH HAA,, found the number 3 cylinder was dead.



5. To confirm that it was not the injector I switched the #1 and #3 injectors, the #3 stayed dead.



6. I pulled my valve cover off on #3 and checked gap. It was good.



7. Called Al at Piers, he sold me a slightly tweaked rebuilt injector pump and shipped it to FL. “3300 rpm springs, 191d valves, #4 plate, calibrated, etc. ”



8. My new friend/mechanic Todd Struck in Bushnell, FL did the install yesterday and that fixed it. I had him do the KDP at the same time.



If anyone in FL ever needs any work done on any vehicle, especially your Dodge Diesel, I HIGHLY recommend Todd. (352) 568-7591.



BTW. That new pump from Piers Rocks!!!!



Now I need to figure out how to calm down my cruise control, it will give you whiplash at 70 when you engage it.



Many thanks to all that helped.



John Oliverio

 

[Jim Fulmer]

John give Al or Piers a call and see if you can back the Gov springs off one click to make it were it's not so sensitive, I've got mine now were it only surges 1-2 lbs boost which is fine, if I tighten my springs down it's more like 4-5 which is way too much.



What did they set the fueling like on your pump?



Jim