Smoke from my exhaust ~~~{{{{{{{

[Vlad]

Hi everyone! I have black smoke from my exhaust. Also my DPF has a soot from outlet. My truck is after rebuild but I didn't change injectors but I wish to try. Nobody knows what course smoke but dealerships and others saying me you have junk DPF if smoke is on outlet of DPF and some issues with engine. My truck has 500,000 miles on it. I drove only 15,000 since I purchased it. Each week I was broke down. I spent 30,000$ already on repairing. Sad story isn't it. But ...who had black smoke? Maybe someone has experience with that. Thanks for your shearing!