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Old 07-18-2019, 04:51 PM   #1
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Anyone notice the exhaust color on startup? Mine is white for about a minute and then no visible exhaust. Is that normal? I'm having some ReGen issues lately as well. Occurring much too often.
09 Magna Donatello
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Old 07-20-2019, 08:23 AM   #2
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I have not seen any white smoke on start up and I feel we have the same engines. I blow a little black once in a while when I put the foot down from a stop or when I am working it hard but only ever for a moment.
Gwen & Curtis Nikel
2009 CC Affinity
2015 Dodge RAM Ecodiesel 1500 Toad
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Old 07-20-2019, 08:44 AM   #3
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Originally Posted by hrw View Post
Anyone notice the exhaust color on startup? Mine is white for about a minute and then no visible exhaust. Is that normal? I'm having some ReGen issues lately as well. Occurring much too often.

Let Cummins check your DPF. It may be gettng stopped up and time to remove and clean it or replace it. When I had frequent regens on my 07 ISL with DPF, Cummins cleaned up a pre-filter screen and said that would buy me some time before needing to replace the DPF. Also, they reminded me not let the coach idle for long periods. It was an 07 Allure.
2007 Country Coach Allure Siskiyou Summit, sold/traded Nov. 2018.
2019 Grand Designs 384GK-R 5th wheel. Glen Allen, VA
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Old 07-25-2019, 05:50 PM   #4
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The little black smoke is unburned fuel when under load. Generally not an issue just means the engine is getting a tiny bit more fuel then it can consume at the current speed. Or to put it differently its just lugging along and adding more fuel will not make it lug any faster so it goes unburned. If it does it alot you need a tune up or smaller injectors unless you like rollin coal
Coach runs, usually,Toad runs almost all the time
We get there somehow every time, Go Black Betty!
1990 CC Concept Dragging a 2000 wrangler
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