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

CP3 Is Leaking

Thread Tools
 
Search this Thread
 
Old Mar 23, 2008 | 06:47 PM
  #1  
wildbill's Avatar
Thread Starter
|
BOMBARDIER
Joined: Jul 2007
Posts: 12,809
Likes: 668
From: Billlings, MT
Default CP3 Is Leaking

So I suppose the only remedy is to replace the entire unit. Or is there another way?
 
Reply
Old Mar 23, 2008 | 06:57 PM
  #2  
DangerousDuramax's Avatar
BOMBARDIER
Joined: Apr 2007
Posts: 6,804
Likes: 319
From: Houston, Tx
Default

Where's the leak, or is it just bleeding down and not holding pressure?
 
Reply
Old Mar 23, 2008 | 07:02 PM
  #3  
wildbill's Avatar
Thread Starter
|
BOMBARDIER
Joined: Jul 2007
Posts: 12,809
Likes: 668
From: Billlings, MT
Default

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.
 
Reply
Old Mar 23, 2008 | 07:09 PM
  #4  
DangerousDuramax's Avatar
BOMBARDIER
Joined: Apr 2007
Posts: 6,804
Likes: 319
From: Houston, Tx
Default

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.
 
Reply
Old Mar 23, 2008 | 07:19 PM
  #5  
wildbill's Avatar
Thread Starter
|
BOMBARDIER
Joined: Jul 2007
Posts: 12,809
Likes: 668
From: Billlings, MT
Default

Kinda hard to tell. Looked over the top and looked a little damp there also.
 
Reply
Old Mar 23, 2008 | 07:21 PM
  #6  
mysterync's Avatar
Diesel Bombers Sponsor
Joined: Mar 2007
Posts: 3,791
Likes: 367
From: Blowing Rock,NC
Default

this is probably your hard start issue all together!
 
Reply
Old Mar 23, 2008 | 07:22 PM
  #7  
Diesel Dawgs Performance's Avatar
Joined: Mar 2007
Posts: 14,546
Likes: 843
From: Western NC
Default

Originally Posted by mysterync
this is probably your hard start issue all together!
Hell I just saw this thread and thought the same thing
 
Reply
Old Mar 23, 2008 | 07:40 PM
  #8  
DangerousDuramax's Avatar
BOMBARDIER
Joined: Apr 2007
Posts: 6,804
Likes: 319
From: Houston, Tx
Default

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.
 
Reply
Old Mar 23, 2008 | 07:52 PM
  #9  
wildbill's Avatar
Thread Starter
|
BOMBARDIER
Joined: Jul 2007
Posts: 12,809
Likes: 668
From: Billlings, MT
Default

I hope I'm not causing damage. Might be why it's not idling as smooth. Maybe.
 
Reply
Old Mar 23, 2008 | 07:55 PM
  #10  
mysterync's Avatar
Diesel Bombers Sponsor
Joined: Mar 2007
Posts: 3,791
Likes: 367
From: Blowing Rock,NC
Default

Yup thats your rough idle and hard start! no , Your not causing any damage!

I'll round you up some part prices tommorow!
 
Reply



All times are GMT -5. The time now is 11:33 PM.