Black smoke

[hawkeye]

I have a 05 - 6.0 powerstroke 20,000 mi. I'm recently seeing black smoke bellowing out the exhaust pipe. This only happens during acceleration, whether it is soft or hard. Any ideas why?

[Clay Henry]

it could be alot of things i believe...I'll let the experts chime in on that but the first thing that comes to mind is a stuck injector pumping to much fuel. I say that because the 6.0 has developed a reputation for there injector problems.

[mschn99]

is the truck stock or are your running it chipped?? is it running well besides that??

[hawkeye]

Everything is stock and it is running great.

[mschn99]

sounds to me l ike you have an injector failing. Get it in to be looked at, because the black smoke is excess fuel not being burnedand if the injector dumps too much you could hydrolock a cylender. I bet if you pull the dipstick its over full and smells like diesel as well. If my hunch is right you could also end up with a runaway, unable to shut the motor down, so be carefull till you get it in the shop.....

[hawkeye]

Tha dipstick is at it's max but no diesel smell. I did change the oil 2,000 mi. ago. No codes are showing. What are the chances of a runaway and how can I get it shut down if it does?

[mschn99]

i could be wrong about why there fuel not being burnt, but if i am right and it runaways, there is no way to shut it down without plugging the air intake completely. it will run on the oil till the oil level gets too low......

[Rodslinger]

Aw man I'm screwed! My '05 blows black smoke all over the place....just ask any Cummins and Dmax I've ever been next to cuz I've never really got a good look at it in my rear view.
J/K! Welcome to Powerstroke.org!!!!

[ndurbin]

A 2x6 over the intake hose well cut all the air to the motor. But by the time ya jump out, open the hood, get the intake hose disconnected, and the board over it there maybe no need as there may not be a motor left. Better advise would be to just back away, let it bow, and take it back for waranty work unfortunately.

[99Smokin73Stroker]

Couldn't you just lay on the brakes as hard as possible or will it just power through them?