Hey guys need some major help here. I have a 2003 F 250 6.0L diesel. I replaced all 8 injectors and the EBP sensor, MAP sensor and the fan clutch motor. Fuel filters and oil changed.

152,000 miles on the truck

This was an issue before all the above was completed and is still a major issue.

The truck hesitates going up hills and sometimes on the freeway and blows out black smoke when it hesitates. It is mostly when I step on the gas it does it more often.

No codes showing up at the Ford dealership

Could it be the turbo or something simple?

I also here a flutter sound after I let off the gas from the motor more on the left side. Like a leak maybe or something.

Please help nobody at the dealership knows what is causing this.

Thanks in advance