water in fuel light on - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 04-21-2011, 07:05 AM Thread Starter
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water in fuel light on

its a 2008 f450 , its my brother in law..the light(drain water from separator) came two days ago and i drain the filter housing on rail and clear light drove it and no light .. he pick it up this morning and drove it several miles and call and told me light back on...truck runs great..do i need to replace fuel filters?
please help
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post #2 of 9 Old 04-21-2011, 07:12 AM
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yes drain it again and replace the filters. Mine did this on my 2010 and tey had ot replace the sensor. i know some on here have went opened the separator and cleaned it out. Make sure you have the gasket to replace the old one if you decide to clean it out.

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post #3 of 9 Old 04-21-2011, 07:26 AM
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I know this sounds stupid, but my buddy's 08 had the same issue.... Fuel filler cap wasn't tight....
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post #4 of 9 Old 04-21-2011, 09:37 AM
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Don't mess around with it too much. If there is water in the fuel, it is a high $$$$$ repair not covered by warranty. It may be too late if the light has already came on, but I would be very cautious with it.
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post #5 of 9 Old 04-21-2011, 07:25 PM
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Just picked mine up from the dealer today for the same problem, the rubber orings get gunk buildup from the fuel and have to be cleaned out. Mine is an 08 and it was covered under warrantie

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post #6 of 9 Old 04-22-2011, 07:30 AM Thread Starter
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what o ring?
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post #7 of 9 Old 04-22-2011, 11:27 AM
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I had the same problem. I took off the cover to the fuel seperator and cleaned it out. I couldn't believe how much gunk was in there. No problems since. It could also be the sensor.
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post #8 of 9 Old 04-22-2011, 02:04 PM
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Quote:
Originally Posted by da2006n View Post
what o ring?
Sounds like that may be your problem, should be one around the cap.


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post #9 of 9 Old 04-22-2011, 05:06 PM
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The mold that can grow in the housing will continue to realese water on the sensor making the light come back on I would remove the cover off of the pump and insp for this and clean it out.
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