Hey guys so the other day I noticed a cloud of black smoke behind me while I'm driving on the highway it lasts about 10 seconds and goes away for 20 or so miles. Seems like if I'm idling for awhile and I get on ... JOIN NOW TO REMOVE TRACER
Hey guys so the other day I noticed a cloud of black smoke behind me while I'm driving on the highway it lasts about 10 seconds and goes away for 20 or so miles. Seems like if I'm idling for awhile and I get on it it just dumps black smoke. It has a tiny surge to it when it happens. BTW truck is all stock and is an 07 6.7 megacab drw.
I just changed the oil, fuel, and air filter also cleaned the MAF and did a ccv delete.
Last edited by rokinrubi; 07-13-2013 at 10:38 AM..
You may have an issue with the dpf system, you need to get that looked at.
It may be plugged, needs removed and baked out.
When was the last time the dpf went through a regen cycle?
as for the surge, it sounds like the dpf system may be full and about to put the motor into a limp mode.
Last edited by 97cummins; 07-15-2013 at 01:25 AM..
Because the fuel injected into the dpf is getting past the filtering material. But if you've never noticed the dpf doing a regen, i'm willing to say the filter needs cleaned or the filter is shot.
You should also think about a dpf delete,depending on the emmisions regs in your county and state.
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