I've just had the oil changed, filters are fresh and now I have a miss. The truck doesn't lope at idle but when you take off I can feel it's not pulling even on all 8 cylinders. What do I need to start checking first? Hope this is easy.

 

I still have this issue and it seems to come and go, any ideas? Do the 2003 7.3s have this UVC wire harness issue? Is it my imagination or what? but with the AC on, my truck runs smoother.

 

try swapping your cps

 

My have a bad connection on the uvc or you may have an injector giving you problems. have you had it scanned?