2006 Dodge 2500 cummins black smoke?

Question

Just bought a 2006 cummins with 33000 miles on it. I notice that even after replacing the air filter I get black smoke out of the exaust pipe (normal acceleration). I have driven other 06 cummins that did not seem to smoke at all let alone this much. I have plenty of power, and the truck runs awsome. what could be some other causes. I have looked for chips, or aftermarket products installed in the truck and have not found any. any thoughts would be great!

Answer 1

changing the air filter should not make it smoke more--unless the new filter has more restriction. Check your restriction indicator on your air box. If you are using a k&n filter or similar--you may have used excessinve amounts of oil. Check to make sure that all piping is connected and tight. Also down loaders like the BullyDog down load a calibration--so there are no parts to see, but there is a power increase along with extra smoke.

Answer 2

2006 Dodge 2500 Cummins

Answer 3

If the truck was burning oil the smoke would NOT be black. Black smoke is incompletely burned fuel - not "unburned" fuel. You may have faulty injectors that are allowing more fuel to be injected into the combustion chambers, a boost leak, or the computer may have been flashed by an aftermarket programmer and never reprogrammed back to stock settings. There are many more possible causes, for a more expansive list of possibilities, check out a forum where other members can help you out.

Also your engine has a 100,000 mile warranty or 5 years I believe, whichever comes first.

Answer 4

You have warranty 36000 miles 100,000 Engine take it in an see whats wrong.Did some one put larger injectors>>??As my 04.5 with 100hp quadzilla ram/air induction. Smokes once in a while only when i ran bio fuel never again>?Do you have stock exhaust >?Change the fuel filter an see what it looks like black of course but is there a lot of trash could of got some old or bad fuel, that will make it smoke & if it was used in the city might need a trip>>>fuel only from a well use service station.I run an diesel additive from advance auto works great>>

Answer 5

2006 Cummins

Answer 6

some black smoke is normal, and more than likely, the previous own installed a programmer that was plugged in under the dash, downloaded, then removed (these vary by adding 35-65hp). These are very common and will cause additional black smoke to some degree. Sometimes these are virtually undectable without hooking up diagnostic equipment.
and yes, take it in to a dealer to have it checked out, but also run the risk of nulifying your remaining warranty if there actually was a programmer downloaded!!!

Answer 7

there are a few things. There are some chips that cannot be detected by hooking readers up to it. I don't think there is a chip in it. If the truck was mostly highway miles the smoke will built up in the exhaust or cat and when giving it gas it will blow it out. I don't think it is burning oil. Also the air filter might need to be changed. If there are any traces or a light white smoke it would be your injectors.

Answer 8

if there isn't an after-market chip.have the fuel injectors checked out,could be some crud caught in them preventing them from closing completely,which would mean its getting excess fuel inside the chamber,which would produce the black smoke because of incomplete combustion.

Answer 9

If it has a diesel turbo then the turbo is messed up. if the turbo dryer is sezzed then it will smoke too

Answer 10

Its probably burning oil.