grmjepr
SDD Junior Member
, Ok here it is, I have tried researching as many hesitation threads as possible, and still are stumped. This is what I have. 2000 7.3 excursion. Last year my injector harness went so it was replaced along with the recall cam sensor. Shortly after I began noticeing a once in a while slight ruff idle. A few once down the road i had a hesitation/jerk with light throttle, and also while on cruise control. So off to the dealership it went. replaced # 1,3,and 8 injector, still no resolution. Cleaned back pressure sensor, nothin. Finally after going back to dealership they replaced my ICP. Truck then ran fine but still had ruff idle once in a while. Now about one year later, light throttle only, hesitation is back, worse than ever. I went back thru and replaced the ICP,cam shaft sensor, recleaned back pressure tube, and still nothing. WOT is perfectly fine. Now, if i start the truck "COLD" and immediately drive it, it is fine for about 5 minutes then the gremlins come out. I read a thread about the IDM possibly causeing my grief. I do run a SCT tuner on extreme, but do not beat my truck, I have also tried on stock tune. With extreme, problems are of course much more noticeable. extremely frustrated and ready to go back to spark plugs