Black smoke - Diesel Bombers



5.9L CR Performance Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection Related To Performance And Longevity

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Old 05-10-2011, 06:38 AM
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Question Black smoke

My truck started smoking all the time, it is black smoke, not sure what would make it smoke black all the time, even at an idle u can see it, and under slight acceleration. i tried taking off the chip and no change at all, i have a 4in exhaust, AEM Brute Force HD Diesel Intake and Diablo Sport Predator Programmer , any help would be great, thanks
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Old 05-10-2011, 08:15 AM
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try clean your air filter...
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Old 05-10-2011, 08:16 AM
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stuck open injector or leaking injector. some way or another your getting to much fuel or more fuel in then before or like mentioned above your air flow is to restriced
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Old 05-10-2011, 08:22 AM
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also maybe try and run some seafoam and fuel system cleaner that might help
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Old 05-10-2011, 08:42 AM
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check your MAF sensor... it could be dirty/oily and it could be giving the ECM weird readings
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Old 05-10-2011, 05:19 PM
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Air cleaner is clean, ill try cleaning the maf sensor and see if that will help.
also my fuel mileage went from 18 to 12mpg

---AutoMerged DoublePost---

Is there a way that i can check my injectors, to see if one is stuck open? also what should i use to clean the maf sensor?

Last edited by nelson86m; 05-10-2011 at 05:19 PM. Reason: Automerged Doublepost
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Old 05-11-2011, 11:39 AM
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maf I would try brake kleen
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Old 05-11-2011, 03:43 PM
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They do make MAF cleaner... They should sell it at any parts store
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Old 05-11-2011, 04:24 PM
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get an auto enginuity and do a injector test to test them, and maybe a maf reading
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Old 05-11-2011, 06:51 PM
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Quote:
Originally Posted by brown guy View Post
maf I would try brake kleen
not so good of an idea, brake kleen can melt or damage the MAF, better to use MAF cleaner
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