The black smoke is caused by too much diesel fuel being supplied to the engine when you first open the throttle. Quite often this happens when the fuel injectors are worn and /or the turbo is not coming up to speed quick enough.
Unburnt fuel in exhaust.
Already been done. Diesel Particulate Filters and Diesel Exhaust Fluid.
Could be a diesel? If not then replace your oxygen sensor on your exhaust. A bad oxygen sensor causes the exhaust smoke to be dark in color.
Their injection pump is set too rich, and lets more diesel into the engine than the engine can burn. The partially/badly burned diesel is what comes out as black smoke.
blown turbo - worn turbo bearing causing oil to suck through and into exhaust manifold - results in no power and neat oil burning in the exhaust - major black smoke
My understanding of exhaust smoke is that Blue is oil, Black is unburnt fuel, White is unburnt diesel on cold start. The main question would be, how much smoke and when does it do it?
Black smoke is : too much fuel and not enough air, a faulty injector (s). Take out the injectors and have them tested before you do engine damage.
this will happen on all diesel engines (if its going to make reasonable power) its basically soot/carbon from the exhaust and unburnt diesel. on some high power turbo diesel cars there is proper plumes of black smoke. you only need be worried if there is blue smoke while on boost as this means the turbo is shot. but black = good
White smoke means water, blue/black smoke means oil, black smoke can also mean the fuel mixture is too rich.
emissions and exhaust
I am a diesel technician and black smoke usually means too much fuel. Check injectors and check turbo for oil leak inside. Agreed I'd like to add i have had exhaust restriction's cause black smoke on these models as well. I am also a certified isuzu technician and work on them everyday. Powerstroke57
That is a necessary evil thanks to the EPA. A diesel truck won't pass emissions without one. Chevy and Ford have them too, they catch the black soot that diesel engines are famous for and store it. When the filter gets full the truck injects raw fuel into the filter to re-burn the soot, Unfortunately dodges think they are full all the time and have a steady stream of diesel pouring into the exhaust helping you burn that $4.00 a gal fuel. But it could be a Ford and shoot a 10 foot flame out the exhaust burning up the RV or load of hay your pulling.