5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

HELP, loosing rail pressure after 1/2mile

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  #11  
Old 07-30-2012, 09:28 PM
cummin_un_glued's Avatar
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no problem man, i'm not really a parts pusher i ran an actual shop so repair is my bread and butter, selling a few parts along the way is just icing on the cake for us.

before you order a new pump i would still try to swap the pop off i really really doubt that it is the pump. we have changed a few of these pumps that have gone bad but none that have done what your saying.

also just for giggles have you checked the fuel pressure coming from the airdog?
 
  #12  
Old 07-30-2012, 10:33 PM
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No I need a Push on barb tee so I can test it. I would hope that it is good it is brand new.
Supposedly it is factory set a 15psi but won't know until I get a fitting.
 
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Old 07-31-2012, 06:16 AM
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Check it before you buy a pump

Sent with a Droid RAZR in one hand and 14,000 volts in the other.
 
  #14  
Old 07-31-2012, 11:58 AM
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Well, it appears that the RPS did the trick the CP3 lives. Thank goodness, like I said I didn't have a problem with buying a new pump if I needed it. This goes to show you that if you don't have a person helping you trouble shoot it can be costly.

I would like to say thank you to cummin_un_glued and Oregon Fuel Injection for the help.

---AutoMerged DoublePost---

Update, well so much for that the truck is acting up the same way again. Everything was doing great for quite a while and then right back to the same old crap. I feel like putting a drum of tanarite in it and shooting it with my AR.
 

Last edited by jrichard5.9L; 07-31-2012 at 11:58 AM. Reason: Automerged Doublepost
  #15  
Old 07-31-2012, 02:46 PM
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Check the wiring at the fca plug and i would still check the airdog pressure even tho it is new.

Sent with a Droid RAZR in one hand and 14,000 volts in the other.
 
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