BIG FUEL LEAK! PLZ HELP BEFORE I GO NUTS!! - Ford Powerstroke Diesel Forum
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Old 04-06-2010, 08:10 AM
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BIG FUEL LEAK! PLZ HELP BEFORE I GO NUTS!!

I have an 05 6.0 f250 that is leaking fuel from I think under the hood. It seems to be the worst after the truck sits over night. There is sooo much fuel that the motor steams and my left front brakes, caliper, tire and wheel are covered in it. Under the hood, the pass batt, brake resy, air cleaner, and top left head is dripping with fuel and making a huge puddle under the truck.

I changed out the "key" looking O ring 2 days again and today its just as bad. I cant ever catch it leaking, it seems to be worst when the motor is cold, or if I stop on it doing down the road. Any help would be great.


Also, after I changed the O ring the water in fuel light came on and then went off about an hour later.

plz help!
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Old 04-06-2010, 08:27 AM
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Sounds like your fuel filter housing may be cracked.
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Old 04-06-2010, 08:32 AM
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well thats what I thought as well, but if it was cracked wouldnt it always drip? I cant ever catch it doing it. So i dont know.
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Old 04-06-2010, 08:34 AM
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Originally Posted by wareracing07 View Post
well thats what I thought as well, but if it was cracked wouldnt it always drip? I cant ever catch it doing it. So i dont know.
If it leaks while setting, it will leak under pressure so you just need to crawl around in there and look while its running.
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Old 04-06-2010, 09:38 AM
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ive done that too. I had someone put it in 4x4 and power brake to see if it would leak under a load. No leaks. it seems to come and go. usually in the early morning when the motor is cold. I 'think" its coming from a fitting in the fuel filter housing. I wanted to change out the lil o ring that has 2 nuts prob 21 or 22mm?? but I couldnt get the back one to loosen up so then i could undo the threads out of the housing where the o ring is.
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Old 04-06-2010, 09:42 AM
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Originally Posted by wareracing07 View Post
ive done that too. I had someone put it in 4x4 and power brake to see if it would leak under a load. No leaks. it seems to come and go. usually in the early morning when the motor is cold. I 'think" its coming from a fitting in the fuel filter housing. I wanted to change out the lil o ring that has 2 nuts prob 21 or 22mm?? but I couldnt get the back one to loosen up so then i could undo the threads out of the housing where the o ring is.
that sounds like a Darwin aware candidate...
Your stock fuel pressure is around 55 psi reguardless of load, idle it and your leak should show itself...keep looking.
You are sure its diesel your seeing right?
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Old 04-06-2010, 11:46 AM
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Quote:
Originally Posted by Clay Henry View Post
that sounds like a Darwin aware candidate...
Your stock fuel pressure is around 55 psi reguardless of load, idle it and your leak should show itself...keep looking.
You are sure its diesel your seeing right?
Yes make sure its diesel, smell it AND taste it
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Old 04-06-2010, 02:11 PM
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yes is Diesel. It smells up the cab something aweful!
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Old 04-06-2010, 06:02 PM
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Quote:
Originally Posted by wareracing07 View Post
yes is Diesel. It smells up the cab something aweful!
How sure are you that it is diesel? Did you actually pick some up off the ground and smell it?

55PSI at idle is enough to see it leak. Power wash the entire motor, let it dry and start it and LOOK as hard as you can. Pull the air box off if you have too. You will find the leak if it is leaking as much as you say it in the short amount of time your saying.

My best bet is your filter housing is cracked. Use a very bright flashlight, and pull it off if you have too.
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Old 04-07-2010, 05:03 AM
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Trust me, you dont need to pick some off the ground and smell it. everyone from 10 yards can smell it. Its not antifreeze or oil. Ill jump on it again today and see if its cracked.
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