Fuel Filter/Water Separator; Draining The Fuel Filter/Water Separator–6.0L Power Stroke Engine - Ford F650 Owner's Manual

Maintenance and Specifications

FUEL FILTER/WATER SEPARATOR

Do not drain water separator while engine is running. Fuel may
ignite if separator is drained while engine is running or vehicle is
moving.
The fuel filter/water separator removes any contaminated particles
and/or water from the fuel before the fuel enters the engine.
The fuel filter/water separator should be drained as recommended in the
Scheduled Maintenance Guide chapter.
DRAINING THE FUEL FILTER/WATER SEPARATOR – 6.0L POWER
STROKE ENGINE
Water should be drained whenever
the warning light comes on or every
5,000 miles (8,000 km).
1. Stop the vehicle and shut off the engine.
2. Locate the drain valve and place
a suitable container at the end of
the drain tube.
3. Turn the drain valve to the drain position and allow water to drain out.
Note: Drain until the water/fuel mixture becomes only fuel.
4. Turn the drain valve to the closed position.
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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WATER
IN
FUEL