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

CP3 Is Leaking

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  #1  
Old 03-23-2008, 06:47 PM
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Default CP3 Is Leaking

So I suppose the only remedy is to replace the entire unit. Or is there another way?
 
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Old 03-23-2008, 06:57 PM
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Where's the leak, or is it just bleeding down and not holding pressure?
 
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Old 03-23-2008, 07:02 PM
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I was underneath and found a wiring harness and the underside of the CP3 damp w/ fuel. Lucky it hasn't made it into the oil, or at least I don't think it has. Oil level stays the same.
 
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Old 03-23-2008, 07:09 PM
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So its leaking where the wiring harness comes out of the pump? That's actually pretty minor and there should be a replacement seal available. There is no high pressure at that location so some small leakage really isn't much of a problem. I'm willing to bet that most of em leak there a little.
 
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Old 03-23-2008, 07:19 PM
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Kinda hard to tell. Looked over the top and looked a little damp there also.
 
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Old 03-23-2008, 07:21 PM
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this is probably your hard start issue all together!
 
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Old 03-23-2008, 07:22 PM
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Originally Posted by mysterync
this is probably your hard start issue all together!
Hell I just saw this thread and thought the same thing
 
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Old 03-23-2008, 07:40 PM
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Yep, you're sucking air. Maybe one of our nice vendors will check on a seal kit available. And don't freak out over doing an overhaul. Its not a difficult as you might think.
 
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Old 03-23-2008, 07:52 PM
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I hope I'm not causing damage. Might be why it's not idling as smooth. Maybe.
 
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Old 03-23-2008, 07:55 PM
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Yup thats your rough idle and hard start! no , Your not causing any damage!

I'll round you up some part prices tommorow!
 


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