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Fuel leak!

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Old Dec 25, 2013 | 07:40 PM
  #1  
86f250XLT-4x4's Avatar
86f250XLT-4x4
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From: Bellefontaine, OH
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Fuel leak!

My fuel mileage has dropped to around 5 mpg at first I just thought it was my ip and injectors getting worse... Until earlier I arrived at my destination and seen what looked like steam coming out from under the hood so I popped the good and was greatest with a face full of diesel fumes!.... I searched and can't pin point the leaks exact location because almost everything is covered in fuel... I just finished driving the ol girl home and it seems that most of it has dried up but I still have fuel puddles on the engine, and even with the truck running when I throttle it up or at idle I can't see any dripping fuel or anything squirting I don't know where to look everywhere I can physically see I can't see fuel coming from anywhere... I have 2 return line caps that have moisture around them but are not the source of this much fuel because the fuel is puddled mostly around the ip (my main concern and suspicion of the leak)
 
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Old Dec 25, 2013 | 09:38 PM
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Clean it up. Dry it out. Soak up ALL fuel. Start engine. Go from there. Too many spots for it to leak from to guess over the 'net.
 
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Old Dec 26, 2013 | 05:35 PM
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Also, wrap paper towels around any likely spots, to prevent spraying. You should soon see which paper towel is soaked, and which isn't.
 
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Old Dec 26, 2013 | 05:47 PM
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86f250XLT-4x4
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I will try to do my diagnosis tomorrow I will let you guys know what I find!
 
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Old Dec 28, 2013 | 05:01 PM
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86f250XLT-4x4
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Took brake parts cleaner and rinsed the top of the engine off to get rid of all the fuel residue and then I let her dry for a couple hours and started her up again took about 2 minutes to start leaking again... Somehow it rubbed a hole in the return line from the center of the ip to the fuel filter head!
 
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Old Dec 29, 2013 | 01:50 PM
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I am having the exact problem from the exact place. Did you just replace the hose?
 
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