1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Grey - white smoke

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  #1  
Old 11-15-2011, 12:01 PM
papa_4runner's Avatar
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Default Grey - white smoke

I am about to junk this truck
About 2 weeks ago I notice that the truck is blowing allot of white/grey smoke.
I have try and try to figure out what causing it,
It used to blow (coal) now no black smoke at all expect the grey smoke. Power loss is notice now too
Here is a list of everything I have checked or replaced, If you can tell me if I am missing something or ad to list of stuff to check I would owe you one

Air filter - New
Fuel filter - new
LP - new
Oil is good no water
Check AFC tube as well as 90% of the lines and hoses
Turbo still working fine
EGT still under 1k unless towing then 1200

Here is links to my other post
Lost Smoke still got power - Dodge Cummins Diesel Forum

1stGen.org • View topic - White-grey smoke
 
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Old 11-15-2011, 09:56 PM
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what part of NC you in? you have 150hp injectors and your egt's are only 1000 at WOT? No getting full fuel for sure if you have a stock turbo. what kinda fuel flow did ya have if you still have the factory lift pump it should flow .75 liters per 30 seconds of engine cranking. and a min of 3 psi.
 
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Old 11-16-2011, 06:54 AM
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Thats what I thought reason I replaced lift pump.
WOT egt or 1200 to 1400 depending on grade
I am near Salisbury
 
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Old 11-17-2011, 01:10 AM
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Check the flow and see what ya got. I'm kind of surpised you haven't had problems before with 150hp injectors. kinda big for a stock LP.
 
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Old 12-11-2011, 03:58 PM
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get some smaller injectors.
 
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Old 12-11-2011, 07:33 PM
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Did smoke black before the injectors and quit smoking black after the injectors? Or black after the injectors until recently? Kind of sounds like timing, but since the VE uses fuel pressure for it's timing advance low fuel pressure can cause multiple problems including timing retardation.


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Old 07-23-2014, 11:29 PM
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mine was feul filter not sealing sucking air lost many night sleep lmbo
 
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