So my truck has been running fine for a while and my fuel pump is only a few months old but I turn onto my road drove up
A hill and it lost a good amount of power and ran real rough. I got it home but it stalled right in the driveway. I can start it up but it's really muddy sounding and pumps out white smoke. Barely drives.

 

Sounds exactly like mine when my rocker arm broke

 

Having this same issue with mine right now. Minus the truck stalling. But it turns over and won't start cold. I'm leaving towards an injector issue.