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Draining the fuel filter/water separator
Water should be drained from the
module assembly whenever the
warning light comes on or every
5,000 miles (8,000 km). The WATER
IN FUEL light will come on when approximately 0.13 pints (60 cc) of
water accumulates in the module.
Replace the fuel filter with Motorcraft Part No. FD-4596.
1. Stop the vehicle and shut off the engine.
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 module drain plug cap
on the outside of the left frame rail
and place an appropriate container
under the drain plug.
3. Loosen the drain plug by turning it counterclockwise. Allow 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 the WATER IN FUEL indicator light; it
should not be illuminated. If it continues to illuminate, have the fuel
system checked and repaired.
Fuel filter replacement
Both filters should be replaced at the same time.
2007 Low Cab Forward Truck (lcf)
Supplement
USA (fus)
Maintenance and Specifications
135
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