Smokey start
Hey guys. I own a 2003 5.9 Cummins with 377000kms. I just replaced my injectors and now when it starts a good size of black smoke comes out my exhaust and continues with a hazy smoke while idling. Seems to start, run and idle fine. The only aftermarket part is a 4" mbrp exhaust, no catalytic converter which I got installed only a couple months ago. I've only owned the truck for 6 months. It's my first diesel. Not too sure where to start.
Thanks for reading! |
What size injectors? New or Reman? Does it smoke while driving?
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They're 305 HP injectors. They came out of a truck with about 50000km. They were tested and are all 100% it doesn't appear to smoke while I'm driving.
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I should add that my coolant and oil level have not changed at all
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Originally Posted by kylebarrie
(Post 1133649)
They're 305 HP injectors. They came out of a truck with about 50000km. They were tested and are all 100% it doesn't appear to smoke while I'm driving.
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Originally Posted by CumminsCoalRoller24/7
(Post 1133657)
You are good- my truck starts with a puff with 100hp injectors and has a haze if your looking for it at idle. I wouldn't worry about it- seems normal for larger injectors. If you had excessive smoke driving or motor was running poorly it'd be a different story!
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Originally Posted by kylebarrie
(Post 1133649)
They're 305 HP injectors. They came out of a truck with about 50000km. They were tested and are all 100% it doesn't appear to smoke while I'm driving.
Even large performance nozzle injector should not haze or smoke at an idle, that is an indication of poor assembly or poor orifice formation. |
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