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

plzzz help me im stuck and dont know what to do

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  #1  
Old 10-24-2012, 01:17 PM
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Default plzzz help me im stuck and dont know what to do

i was recently experiencing power loss upon heavy excelleration and it would stall so i tried changing my fuel filter then my water seperator filter well i didnt have enough diesel to fill up the water seperator all the way btw this is my first diesel i know im stupid well i sucked up air truck wont start ok and this is were im confused i pressurized my fuel tank bleed over flow valve open low pressure bleed screw been cranking it cranking it one injector is getting fuel outta the line but the others not a drop and ive cranked my battery dead 2 times idk what else to try should i keep cranking i dont want to ruin my pump or starter plz any help will be greatly appreciated thnk u

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Last edited by cummincider; 10-24-2012 at 01:17 PM. Reason: Automerged Doublepost
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Old 10-24-2012, 01:31 PM
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You need to crack a few injection lines and have someone close the lines once that fuel is coming out
 
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Old 10-24-2012, 02:37 PM
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Yea I got the back 2 and the third is just dripping but battery died again just keep turning it over till it comes out ? On the rest

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? And should I crack all of them or just a couple
 

Last edited by cummincider; 10-24-2012 at 02:37 PM. Reason: Automerged Doublepost
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Old 10-24-2012, 02:58 PM
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I would try that for sure. You made sure everything is kosher on the pump and everything
 
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Old 10-26-2012, 01:18 PM
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Update I've tried opening the lines for the last 2 days only getting fuel outta the back injector and nothing outta the others keep trying but nothing any idea air leak or injection pump?
 
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Old 10-26-2012, 09:47 PM
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May have a pinhole or Dryrotted fuel supply line. There is a rubber section tucked behind IP that's where mine was leaking. Good luck
 
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Old 10-27-2012, 12:57 PM
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try just cracking #1 at the pump. Thats what I always do.
 
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Old 10-27-2012, 01:43 PM
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It's all good I got it last night finally thanks u guys
 
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Old 10-28-2012, 10:04 PM
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Good deal

 
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Old 10-29-2012, 03:26 PM
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Have you tried pressurizing the system with the plunger in the lift pump as well.
 




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