how often??
Fleet Mechanic
Joined: Mar 2012
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From: Land of the Free
Really? In the age of digital cameras, adjustable date/timestamps, and photoshop? Thats what your stickin with?
Senior User
Joined: Dec 2010
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Based on claims of HFPF failures, the WIF light never came on for many. Service manual says "drain monthly or at oil changes." I drain mine monthly and get about 6-8 tiny droplets of water in about 10-12 oz of diesel. I keep the "evidence" in sealed mason jars in the garage, dated. Just for a little extra documentation.
ken
Fleet Mechanic
Joined: Mar 2012
Posts: 1,738
Likes: 7
From: Land of the Free
Air and water are very different in fuel. And easy to identify due to specific gravity. Water is heavier than fuel and will always sink to bottom. Air is lighter and always rise to top.
Elder User
Joined: Apr 2010
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Based on claims of HFPF failures, the WIF light never came on for many. Service manual says "drain monthly or at oil changes." I drain mine monthly and get about 6-8 tiny droplets of water in about 10-12 oz of diesel. I keep the "evidence" in sealed mason jars in the garage, dated. Just for a little extra documentation.
Fleet Mechanic
Joined: Mar 2012
Posts: 1,738
Likes: 7
From: Land of the Free
Unless the manual has changed, I have a 2011, the manual say's nothing about the monthly draining, only about when you get the WIF light. It is only mentioned on a separate sheet named "Ford 6.7L Power Stroke® Diesel Operating, Maintenance & Care Tips." Something that I don't even recall getting. You would think if it was that important it would be in the manual with other maintenance items and not a "tip".
Elder User
Joined: Apr 2010
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That's where I was looking. If it's in yours let me know the page number, I can't find it in my 2011. Only if WIF light, nothing about monthly draining.
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
seen here, http://www.motorcraftservice.com Owner Guides from the left nav.
both 2011 and 2012
"The water separator should be drained monthly or when the "Water in Fuel Lamp" illuminates."
Both diesel supplements say
"The DFCM should be drained at regular intervals or when indicated by
the message center message"
I guess you pick your 'regular' interval.
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percyad
6.4L Power Stroke Diesel
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Feb 18, 2010 06:39 PM
