Black smoke dumps out and I lose lots of power. I have had several mechanics look at it and nobody has figured it out. I have changed the ebps tube, ipr, icm, one injector, injector o rings, valve cover gaskets, cps and some other stuff. Could it simply be something with the turbo? Feel free to put in your $.02, any help will be appreciated. I have a stock tune it it now, when I put it in tow or extreme, it happens quicker.
Read more: I have a 99 Ford f350 with a 7.3 and when I'm accelerating my truck starts bucking and surging around 2500 rpms?