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Old 03-20-2011, 16:42   #1 (permalink)
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6.0 water in fuel

The gauge says "Water in Fuel" - how do I change the fuel/water separator in an '06 F450?
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Old 03-20-2011, 17:36   #2 (permalink)
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Re: 6.0 water in fuel

Hope this helps

Quote:
Water in fuel

During refueling, it is possible for water-contaminated diesel fuel to be pumped into your tank. Your vehicle fuel system is equipped with a fuel
filter/water separator to remove water from the fuel The WATER IN FUEL light will illuminate when the ignition light is turned to START (as part of the light function check) and when the FCM/HFCM has a significant quantity of water in it.

If the light illuminates when tire engine is running stop the vehicle as soon as safely possible, shut off the engine, then drain the FCM/HFCM. Refer draining the FCM/HFCM and changing the fuel filter.See: Engine, Cooling and Exhaust\Engine\Fuel Filter Allowing water to stay in the system could result in extensive damage to, or failure of, the fuel injection system.

WARNING: Do not drain the water separator while the engine is running. Fuel may ignite if the separator is drained while the engine is running or the vehicle is moving.
I believe its located on the frame rail on the drivers side.


Quote:

HFCM (Horizontal Fuel Conditioning Module) drain procedure

1. Stop the vehicle and shut off the engine.

CAUTION: The vehicle must be stopped with the engine off when draining the HFCM. Fuel may ignite if separator is drained while the engine is running or vehicle is moving.



2. Locate the HFCM and place an appropriate container under the drain plug.
3. Remove the drain plug, using a 6mm hex drive, by turning it counterclockwise. Allow the HFCM to drain for approximately 25 seconds or until clean fuel is observed. Install the drain plug by turning it clockwise until it is firmly seated.
4. Verify that the drain plug is closed and sealed, then remove the container from under the vehicle.
5. Restart the engine and check WATER IN FUEL indicator light; it should not be illuminated. If it continues to Illuminate, have the fuel system checked and repaired.
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Old 03-20-2011, 17:54   #3 (permalink)
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Re: 6.0 water in fuel

Nice man, good info.
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