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2002 F-250 7.3 l diesel leaking fuel at the fuel filter

I noticed something dripping from beneath--thought it was melting snow(-6 degrees today)closer look was fuel. Opened the hood and noted wet around the fuel filter/separator but could not locate the exact leak. I am looking for a good diagram of the area to look at O-rings, cracked housing part numbers. OH--I should mention I ran bio-diesel B-5 for approx 4 months last year.
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Running Bio-Diesel should not be a problem, although BD is a great solvent that will dissolve petroleum desposits left behind by regular diesel. I suspect that the gaskets on the fuel drain valve are worn out and leaking fuel. Most of the time the whole valve is replaced, but I have seen only the two o-rings for sale on the internet. It is easier to repair by laying on your front side on a large pillow. If that does not work, come back to fixya and we will help you again.

Posted on Sep 23, 2010

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