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

Blue smoke

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Old 02-19-2012, 04:18 PM
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Default Blue smoke

so when i start my truck in the morning i get a huge cloud of blue smoke. i know i have blowby but id like to fix the problem the less expensve way i can.
 
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Old 02-20-2012, 01:43 PM
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Mine does it too, mines not a huge cloud but is noticable. Ive heard its oil that seeps around the pistons into the cylinders and the engine just burns it off. I dont think it hurts anything but burning a smidge of oil.
 
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Old 02-20-2012, 02:29 PM
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My '95 does it also when I first start it up. Once the motor warms up for 10 minutes it stops smoking blue.


1995 Ram 3500 4x4 5.9 12 Valve Automatic
4" Straight Pipe to 9" Stack
 
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Old 02-20-2012, 03:27 PM
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That's a usuall for an older engine and if u got blow by it probably is jus the rings getting worn out but i wouldn't worry bout it too much cuz once they get warmed up it should be fine
 
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Old 02-20-2012, 04:18 PM
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Most do it.
 
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Old 02-20-2012, 07:17 PM
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ya when its warmed up it doesnt let out blue smoke. i do have blowby though
 
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Old 02-21-2012, 12:54 PM
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same thing happens over here, after 10 min its fine i wouldnt worry about it to much i work the **** outa my truck and it loves every second of it!! goin on 300k!!
 
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Old 02-21-2012, 11:06 PM
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ok. do i need to pull the head off to pull the pistons? of should i jsut have a shop fix it. oh and to make things better is i think i broke a fuel line
 
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Old 02-22-2012, 12:50 AM
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A huge cloud on initial start up indicates valve seals in my experience.
 
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Old 02-27-2012, 04:43 PM
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so whats the labor like on that
 


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