7.3 Water in fuel light - Ford Powerstroke Diesel Forum
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Old 01-02-2008, 01:29 PM
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7.3 Water in fuel light

I have a 99 F-250SD 7.3, my water in fuel light is on. I have put HEET in it but did not make a difference, any ideas?
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Old 01-02-2008, 01:47 PM
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There is a yellow lever on the back side of the fuel filter housing this is the fuel drain valve. You need to rotate it clockwise to drain. Locate the fuel drain tube that leads from the rear of the fuel bowl on the top of the engine it is a metal fuel line looking that ends on the front of the engine. It is 3/8" slip a piece of hose over the line and drain into a container. If you light doesn't go out then you need to inspect the fuel bowl and possibly change the sensor.
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Old 01-02-2008, 01:48 PM
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Its a good idea to drain the filter housing on occasion to drain any water out of the fuel system
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Old 01-02-2008, 01:55 PM
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Old 01-02-2008, 01:59 PM
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Also you might as well change out the fuel filter if your not sure the last time it was changed
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