Just kinda wondering if anyone on here is a diesel or heavy equipment tech I have a trackhoe I bought that has been blowing black smoke and I understand that is over fueling and swapped injectors with no change. I dont really know if I need to be looking at turbo or injection pump it is a 2004 john deere 200clc if anyone has any tips or knows someone in the north Alabama area who would be willing to help figure it out it would be much appreciated thanks