Started as a little loss of power then a dead miss under light pulls on hills..changed the cam sensor as this will make a 7.3 run funky ..no change. Then I started noticing a little smoke and oil consumption..even less power so I pulled the fuel filter to see if I picked up some dirty fuel..it was black with engine oil. This is a sign the injector seals are bad letting oil back feed to the filter housing. I changed seals and tossed in new harnesses and glow plugs while I was in the motor. Still runs sluggish..with sporadic miss and some smoke. Today I'm checking IPR .
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