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Old 02-18-2013, 06:38 AM
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Repeat fuel leak

Hey guys, newly registered here at the site. I have visited your site as a visitor to gather info and research problems. Now I need to ask a question. I bought a 2006 F250 diesel back in December. About 3 weeks into ownership it developed a leak at the fuel lines that run from the fuel pump on the frame rail to the left front corner of the drivers' side head. It was leaking at the connections at the head. I was able to find o-rings to fit one connection but not the other, and of course that wasn't the one that was leaking. I broke down and bought the tube assy from ford and it cured the leak. Its been about 3-4 weeks and it has developed a leak at the same connection. I didn't notice any damage to the male ends of the connections when I had them apart, Any suggestions as to the root cause? Thanks for any help you may be able to help with.
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Old 02-19-2013, 12:13 PM
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bump: Anybody?
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Old 02-20-2013, 08:56 AM
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Re: Repeat fuel leak

It appears the male end is the problem, inless there is a crack in the tube. Be careful, a fuel leak or failure in that area has been suspected of burning trucks up if fuel is sprayed on the exhaust manifold.

Sent from my phone that somebody didn't help me get.
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Old 02-20-2013, 02:35 PM
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Just finished replacing the two male end tubes from the front of the head to the secondary fuel filter housing on the top of the engine. Let truck run about 15 minutes no leaks. Went on a 15mile drive, checked, and had fuel leak. Seems to still be leaking at connection at left front driver head. I dried it off, restarted truck, no leaks while idling or while brake torquing in driveway. Has to be driven. Any suggestions? I'm about ready for it to burn to the ground and call the insurance company.
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Old 02-20-2013, 03:01 PM
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Fuel leaks are especially hard to pinpoint. I see most of them originate at the secondary housing and follow the lines down.

Feel around under the regulator cover while the key is on.
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Old 02-20-2013, 07:28 PM
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That was the next thing i was going to check. Like i said i'm having a hard time finding the leak because its not leaking while sitting idling in the driveway. I'LL post an update tomorrow afternoon.
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Old 02-22-2013, 07:20 PM
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After further diagnosis I finally found the secondary fuel filter cap seeping. Replaced filter and o-ring and seems to have fixed the problem.
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