Water in Fuel
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Post Fiend
Joined: Dec 2008
Posts: 7,649
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From: Wallingford, CT
Water in Fuel
My dad has an 06 6.0L DRW w/service body. It's had the water in fuel message go up tons of times. It's not this specific tank of fuel because we've run probably a dozen tanks through it with the message still showing. The truck runs just fine, but is there anything I can do about this?
Fleet Owner
Joined: Nov 2003
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It has been fairly common for the HFCM unit to have corrosion (IIRC) and basically cause this light to come on when there is really no issue. There is a cover plate that can be changed I believe. If not the cover plate than maybe the entire HFCM. I'm sure someone who has experienced it will jump in on your post soon.
Elder User
Joined: Jun 2008
Posts: 724
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From: Sarasota, fl
My dad has an 06 6.0L DRW w/service body. It's had the water in fuel message go up tons of times. It's not this specific tank of fuel because we've run probably a dozen tanks through it with the message still showing. The truck runs just fine, but is there anything I can do about this?
Hotshot
Joined: Jul 2005
Posts: 13,834
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From: Middle Tn.
7.3 also didn't mention when or if the fuel filters have ever been changed. If not for a while I would drain the HFCM and change filters. Sounds like it is over due anyway. If that doesn't help then change the sensing module in the HFCM.
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Post Fiend
Joined: Dec 2008
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From: Wallingford, CT
I'm new to the 6.0 side of things. HFCM? an you elaborate?
The truck has 20,3** miles as it sits and has been in for warranty work 3x for a cylinder not firing. Could the issues be related?
The truck has 20,3** miles as it sits and has been in for warranty work 3x for a cylinder not firing. Could the issues be related?
FTE Leadership Emeritus
Joined: Aug 2007
Posts: 42,085
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From: Lakewood, Ca.
HFCM = Horizontal Fuel Conditioning Module.
Here's a picture: Service Points - HFCM and Fuel Filters
Here's a picture: Service Points - HFCM and Fuel Filters
Elder User
Joined: Jun 2008
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From: Sarasota, fl
So the answer yes, it could be related....
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Senior User
Joined: Aug 2005
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I love the manual page that shows the hex bolt in the HFCM. My truck has (had) the hex bolt in the HFCM but the diesel specific manual in the glovebox shows a lever activated drain plug. Did they change it?
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From: Oaks,PA
Not sure if they changed it but I changed mine yest. to the updated drain plug. Question about this- I only tighten this finger tight or a little past, right? Sorry for the hijack.