[kellytc]

Stumped. Hopefully someone can help.Have an 01 7.3 and its been to two shops and neither one can figure out what is wrong . It runs very rough and noisey sounds like 7th cylinder ? Sounds like a lifter or push rod.
Heres what shop did. No codes , removed injectors and inspected. Compression tested all cylinders , all good there. Tried I.P.R. and I.C.P.
Still seams to have good power.

 

[Rustin]

Have you tested your fuel pressure? I think your Power Stroke is starving for fuel. Are you having loss of power when you step on it?