water in fuel light - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 10-23-2011, 07:19 AM Thread Starter
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water in fuel light

Where are the water in fuel light wires? What do they plug into?
Is it part of the fuel heater wires?
Wheres the sensor? Or what is the sensor?

2008 6.4 f250 lariat 4wd
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post #2 of 6 Old 10-23-2011, 07:57 AM
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I'm pretty sure it's part of the Fuel Heater. Because water conducts electricity and fuel doesn't, all that has to happen it for the resistance between two points drop dramatically to know there must be water there.
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post #3 of 6 Old 10-23-2011, 08:49 AM
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Subscribing... I'm curious myself, always wondered how it knows, lol.

I have only had it come on 2x, once as I was pulling into a (covered) station to fill up in a downpour, the other on a clear day just driving round town. First time, it stayed off after I re-started the truck, the second time it stayed on, so I dumped the fuel, refilled it, and was G2G.
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post #4 of 6 Old 10-23-2011, 09:19 AM Thread Starter
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i have my fuel heater unplugged for the longest time. Last nite the light came on. It went off on its own shortly after coming on. I drained the bowl anyway. This morning it came back on. I looked for loose wires on the fuel bowl but nothings there. I am wondering whats up with the light?

2008 6.4 f250 lariat 4wd
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post #5 of 6 Old 10-24-2011, 02:41 AM Thread Starter
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bump........ Is it the fuel heater?

2008 6.4 f250 lariat 4wd
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post #6 of 6 Old 10-24-2011, 06:24 AM
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Quote:
Originally Posted by melmount View Post
bump........ Is it the fuel heater?
This would seem to indicate it is, not sure of the details though......
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