12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

blue smoke over 2000 rpm?

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Old 04-13-2009, 08:10 PM
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Default blue smoke over 2000 rpm?

i just bought a 94 cummins wit 82000 miles on it. my question is when idle it runs mint i get on it a little and smokes black but wen i really get on it once it gets past 2000 rpm it pushes blue smoke and sputters? idk what it could be injectors maybe? i don't no much about cummins yet but soon i will.
 
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Old 04-13-2009, 08:45 PM
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ive heard of injectors being the culprit for that.
but im not a mechanic
 
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Old 04-13-2009, 09:37 PM
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I would imagine its something simple, the truck has no miles its like new with that low of miles. If you don't know about something, then this is the place to come.
 
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Old 04-13-2009, 09:43 PM
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yes it is, that just sucks if you need injectors at olny 82000.
id save up for some stage 3s or 5s and ugrade your turbo.
maby some dv's or something
 
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Old 04-14-2009, 04:01 PM
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well its been sitting for 2 years the guy said. but i wanna get a fuel plate and injectors wut would u say i should get?
 
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Old 04-14-2009, 04:58 PM
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i got a #10 and i like it.
you could go bigger tho.
i was gunna get a #0 but i didnt want to deal with adjusting the governor and
I would get some injectors or atleast get them tested.
with the fuel plate and injectors your definetly gunna need some guages tho (egt,boost,trans temp)
then youl just need some air upgrades. maby an afe intake and a adjustable boost elbow or just pinch off the line totatally
theres alot you can do with the 12vs just find someplace to start
 

Last edited by Benjamin; 03-24-2010 at 10:40 AM.
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Old 04-14-2009, 05:08 PM
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wuts a stock cummins governor out at do u no?
 
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Old 04-14-2009, 05:43 PM
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94cummins12v said 2200 i believe
 
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Old 04-14-2009, 08:44 PM
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stock fuel cut is between 2200 and 2400.
 
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Old 04-14-2009, 09:13 PM
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if you haven't change the fuel filter may have algea in the system to setting ups hard on anything as far as seal and fuel lines and anything rubber good luck
 


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