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 the resonator and resonator bolt.
6. Install the turbocharger heat shield, then the three bolts on the
turbocharger heat shield.
7. Connect the air inlet tube to the resonator, then tighten the clamp on
the air inlet tube.
8. Install the air cleaner(s), close the air cleaner cover, then close the
four retaining clamps on the air cleaner assembly.
9. Connect the battery ground cable, then all electrical connectors,
vacuum tubes and fasteners as necessary for installation.
10. Install the 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.
ENGINE OIL
Checking engine oil level
Because it is normal to add some oil between oil changes, check your
engine oil level each time you stop for fuel. To check the engine oil level
consistently and accurately, the following procedure is recommended:
1. Have engine at normal operating temperature (at least into the
NORMAL range on the engine coolant temperature gauge).
2. Park the vehicle on a level surface, then turn off the engine and open
the hood.
3. Allow at least20 minutesafter engine shutdown to assure that the oil
contained in the upper parts of the engine has returned to the oil pan.
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30
2. Open the hood. Place an
appropriate container under the
filter drain under the vehicle.
3. Locate the fuel filter drain valve. If necessary, remove the engine
appearance cover. Refer toEngine Compartmentin theService points
chapter.
4.On F-Series and Excursion
models,open fuel filter drain valve
by turning clockwise. Allow to drain
for approximately 25 seconds or
until clean fuel is observed. Close
filter drain valve by turning
counterclockwise until firmly seated.
DRAIN
CLOSE
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35
4.On E-Series models,open fuel filter drain valve by pulling on the
release handle. Allow to drain for approximately 25 seconds or until
clean fuel is observed. Close filter drain valve by resetting handle to
original position.
5. Verify that the fuel filter drain valve is closed. If removed, install the
engine appearance cover.
6. Close the hood and remove the container from under the vehicle.
7. 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.
ENGINE COOLANT
Checking engine coolant
The concentration and level of engine coolant should be checked at the
mileage intervals listed in the scheduled maintenance guide. The coolant
concentration should be maintained at 50/50 coolant and water, which
equates to a freeze point of -36°C (-34°F). Coolant concentration
testing is possible with a hydrometer or antifreeze tester (such as the
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36
