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

fuel leak

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Old Sep 6, 2010 | 04:52 PM
  #1  
12Vdodge's Avatar
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Diesel Enthusiast
Joined: Dec 2009
Posts: 103
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From: Selinsgrove, Pa
Default fuel leak

Alright fella's, I got fuel leak but Im not exactly sure where its coming from. The truck starts and runs fine, and it seems that it only leaks while its running. When I shut it off I get a few drops below the bell housing/tranny and then thats it, it doesnt continue to leak. I was feeling around the fuel filter and preheater bowl and my hands came up dry, but feeling around the bottom/back of the lift pump my fingers find fuel. So is possible that my lift pump is leaking, or is more likely that its a fuel line? Thanks in advance for any thoughts and advice!
 
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Old Sep 6, 2010 | 11:16 PM
  #2  
tltruckparts's Avatar
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Joined: Aug 2009
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From: Lincoln, CA
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both could leak it isnt necesarilly one or the other. get under there and clean it and at startup look to see where it leaking. the fitting could even have just loosened itself but you need to find out where its leaking first
 
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