Persistent Water In Fuel!
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Senior User
Joined: May 2011
Posts: 162
Likes: 1
From: McMinnville TN
Persistent Water In Fuel!
Hey guys,
I just got back from a trip from TN to SC. Just a few days before the trip I serviced the truck, changing both fuel filters. I filled the truck up before I left putting a bottle of diesel kleen in it also (grey bottle). I got about 50 miles from the house and my water in fuel warning came on. So I pulled over at a tire shop and they loaned me a drain pan, and I drained the HFCM. Not 1 mile from pulling out of the parking lot the warning came on again. I though no way! So I drove another 50 miles or so and it came on again, so I repeated the process pulled over at a shop and drained the thing again. The warning still repeated to come on the entire trip. When I filled up the second time I put the white bottle of diesel clean in it (the small bottle for 40 gallons). Any ideas? Can I clean what ever sensor is in there?
I just got back from a trip from TN to SC. Just a few days before the trip I serviced the truck, changing both fuel filters. I filled the truck up before I left putting a bottle of diesel kleen in it also (grey bottle). I got about 50 miles from the house and my water in fuel warning came on. So I pulled over at a tire shop and they loaned me a drain pan, and I drained the HFCM. Not 1 mile from pulling out of the parking lot the warning came on again. I though no way! So I drove another 50 miles or so and it came on again, so I repeated the process pulled over at a shop and drained the thing again. The warning still repeated to come on the entire trip. When I filled up the second time I put the white bottle of diesel clean in it (the small bottle for 40 gallons). Any ideas? Can I clean what ever sensor is in there?
Senior User
Joined: Jun 2012
Posts: 475
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Silly question but are you using OEM fuel filters? and FWIW my water in fuel light has never come on... and i only drain it every fuel filter change. Ive always thought my WIF sensor was bad. its wierd how yours is acting...
Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
I was having the WIF light come on frequently as well.
I drained into a clear Peanut butter jar and found only a little water
but would have "sand-like" glob on the bottom of the jar.
So, I drained the HFCM and then sprayed the inside with
CARB Cleaner (some say use something else) and out came
all kinds of brown/rust colored goo. I keep aiming the straw around
inside and spraying until it came out clean.
I had both driver's side wheels on ramps to give the Ex a good
tilt and get more room (I have 2wd, not as much ground clearance).
It's been a few months and no WIF (I hope I haven't jinxed myself).
As other's have said, if this doesn't work you might have to replace
the WIF sensor inside the HFCM.
I drained into a clear Peanut butter jar and found only a little water
but would have "sand-like" glob on the bottom of the jar.
So, I drained the HFCM and then sprayed the inside with
CARB Cleaner (some say use something else) and out came
all kinds of brown/rust colored goo. I keep aiming the straw around
inside and spraying until it came out clean.
I had both driver's side wheels on ramps to give the Ex a good
tilt and get more room (I have 2wd, not as much ground clearance).
It's been a few months and no WIF (I hope I haven't jinxed myself).
As other's have said, if this doesn't work you might have to replace
the WIF sensor inside the HFCM.
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Senior User
Joined: May 2011
Posts: 162
Likes: 1
From: McMinnville TN
Absolutely I'm only using OEM filters. Misky, did you just spray up into where the drain plug is or did you remove the cap and filter?
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Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
HFCM REMOVAL AND DISSASEBLY
https://www.ford-trucks.com/forums/a...6&d=1324481833
Wasnt what I wanted but check it out
https://www.ford-trucks.com/forums/a...6&d=1324481833
Wasnt what I wanted but check it out
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Bismics POST#6
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Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
against the sides/top/bottom/back etc. to clean each surface.
If you are 4x4 you might have a lot less room than I did.
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