running rough and black smoke

[trucklogger2]

(04-05-2023 )tdawg Wrote:  

(04-05-2023 )Running rough Wrote:  check for cracked pickup tubes in fuel tanks, and maybe for fuel suction leaks on fuel system, could also be bad timing or metering actuaters

I'm wondering if actuators can make it run that bad?

To test them you would switch their position front to back after cylinder cutout test front three back three and seeing if problem cylinders follow actuators. Also look at harness for fuel on contacts.

But where is fuel in oil coming from? you'll end up washing cylinders if you don't pinpoint that problem. I thought maybe the source could be under the valve cover via an injector, so you would see fuel mixing in oil there.
Also the smoke from either a dead cylinder or exhaust valve or turbo/and or actuator or fuel actuator
So many things eh

sorry if I missed something

oh yeah check the value for the atmospheric pressure sensor-should match local barometer press