CHANGING FUEL FILTER
Removal
1. Remove fuel filter cap by turning
counterclockwise. Fuel filter
element will come out with cap.
2. Remove and discard bevel gasket. Carefully clean mating surfaces.
3. Press in on fuel filter element locking tabs, to separate element from
cap.
Installation
The engine will not run properly if the fuel filter is not installed
in housing.
1. Apply a coating of clean diesel fuel to new bevel gasket and install
onto fuel filter housing gland.
2. Install new fuel filter element onto cap. Place new fuel filter element
and cap into fuel filter housing. Allow fuel to soak into fuel filter
element. Tighten cap onto fuel filter housing until cap contacts the
aluminum housing.
Fuel with more than average impurities may require more frequent filter
changing intervals.
General maintenance information
21
3.On F-Series models,open filter
drain valve by turning clockwise.
Allow to drain for approximately 25
seconds or until clean fuel is
observed. Close drain valve by
turning counterclockwise until firmly
seated.
3.On Econoline models,open filter drain valve release handle. Allow
to drain for approximately 25 seconds or until clean fuel is observed.
Close drain valve by resetting handle to original position.
4.On all models,verify that the fuel drain is closed. Close the hood and
remove the container from under the vehicle.
5. Restart the engine and check WATER IN FUEL indicator light. The
light should not glow. If it continues to glow, have fuel system checked
and repaired.
DRAIN
CLOSE
General maintenance information
27
