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7. Remove the fuel filter cap by
turning counterclockwise.
8. Remove and discard old fuel filter
element and fuel filter o-ring.
9. Carefully clean the mating
surfaces.
Installation — F-Series Super Duty and Excursion only
The engine will not run properly if the fuel filter is not installed
in housing.
1. Apply a coating of clean diesel fuel to the new fuel filter o-ring.
2. Install new fuel filter o-ring onto fuel filter element.
3. Install new fuel filter and o-ring into the fuel filter housing.
4. Tighten cap onto fuel filter housing slowly, allowing fuel to soak into
the fuel filter element. Tighten cap until it contacts the housing.
5. Install engine appearance cover.
After replacing the fuel filter, the engine will purge the trapped
air as it runs. The engine may run roughly and smoke until the air
is completely eliminated.
Using a fuel which has more than average impurities may require
the fuel filter to be replaced more frequently than the service
interval specifies.
General maintenance information
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