I have a 2003 Ford F350 lariat 6.0 diesel. when I crank it it has kind of a rough idle not real bad or anything just kinda rough and also it starts bucking when it gets into overdrive and you are trying to cruise at a speed. I took it to the ford dealership to let them run some tests on it because I had no codes popping up and the computer I had at my job to monitor it didn't work for my truck it would only tell me the codes. So ford told me I needed to change three injectors 1,4,and 6 and that I had a bad egr valve and ip sensor which im thinking is the ICP Sensor so I changed all of that out replaced all three injectors everything and also replace like normal maintence things like air filter fuel filters and oil filter. got it all put back together and its still doing I don't know what to do know im taking to a diesel shop and they are going to do a fuel pressure test on it? but I was wondering if anyone else has had the same problem and what you done to fix any help would be greatly appreciated

 

I have an 05 with the same issue, have u found out anything yet?

 

Test FICM, all 3 of those injectors come off the same plug on the FICM so make sure the plug is clipped in, if plug is broken use big tyewraps to hold the plug in place

 

2-3-5-8 are on middle plug/ 1-4-6-7 are on the back plug