dirtiest filter ever and black flecks in fuel in filter housing? pics - Ford Powerstroke Diesel Forum
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Old 08-29-2010, 01:54 PM
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dirtiest filter ever and black flecks in fuel in filter housing? pics

hi, i just removed the fuel filter, it's covered in black slime. the fuel in the housing has black flecks floating around. i sucked the housing mostly clean. any ideas where this crap is coming from. also,

is there a inline filter before this filter?

do i need to fill the housing up with fuel or just turn the key for a few seconds before starting?

the new filter i bought from Napa is a lot smaller than the one i removed, is it still the correct one?
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dirtiest filter ever and black flecks in fuel in filter housing?  pics-sdc13317-copy.jpg   dirtiest filter ever and black flecks in fuel in filter housing?  pics-sdc13316-copy.jpg  
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Old 08-29-2010, 02:11 PM
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Holy crap! When did you change it last?
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Old 08-29-2010, 03:23 PM
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i just bought the truck about 3 weeks ago and i'm working my way through the basic maintenance. it's my first diesel so lots of things are new to me. could the goo and floating specs be from a rotting or de-solving rubber lines?
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Old 08-29-2010, 03:47 PM
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there are two fuel filters. one on top of the engine, the other one is on the frame rail (under the drivers seat).
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Old 08-29-2010, 04:03 PM
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It is more likely from a bacteria present in your fuel tank than de-laminating/rotting fuel lines etc.

Any presence of water in the fuel system is a breeding ground for this bacteria unless treated.

I change my fuel filters out every other oil change, as well as treat my fuel tank every other fill up. Some may say this is way overboard, but in the long run much less expensive than replacing fuel injectors.

I've attached a link to a basic explanation of the bacteria i am referring to.

Diesel Fuel Bacteria Problems
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Old 08-29-2010, 06:23 PM
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Quote:
Originally Posted by shawnking350 View Post
there are two fuel filters. one on top of the engine, the other one is on the frame rail (under the drivers seat).
??? never heard of this second filter before.....
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Old 08-29-2010, 06:29 PM
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Originally Posted by Spanky88 View Post
??? never heard of this second filter before.....
Is where the water seperator is on a 6.0, dont forget to drain it either, there is an allen head plug dead center on the bottom that will drain all of the crap out. If your filter looks like that the pre-pumps life I'm sure is numbered. Just had the same thing go wring with mine, looked like it was full of raspberry jam....
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Old 08-29-2010, 06:36 PM
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i dont remember ever seein the 2nd filter on my truck....but ivenever looked for it
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Old 08-29-2010, 06:44 PM
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This is a 7.3l It only has 1 filter. Are you losing oil? Could be injector O-rings allowing oil into the fuel system. That's a pretty common problem.
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Old 08-29-2010, 06:55 PM
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injector O-rings
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