mileage FORD SUPER DUTY 2003 1.G 7.3L Diesel Engine Owners Manual

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
General maintenance information
36

Rotunda Battery and Antifreeze Tester, 014–R1060). The level of coolant
should be maintained at the“cold full”of“cold fill range”level in the
coolant reservoir. If the level falls below, add coolant per the instructions
in theAdding Engine Coolantsection.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.A
50–50 mixture of coolant and water provides the following:
•freeze protection down to -36°C (-34°F).
•boiling protection up to 129°C (265°F).
•protection against rust and other forms of corrosion.
•enables calibrated gauges to work properly.
When the engine is cold, check the level of the engine coolant in the
reservoir.
•The engine coolant should be at the“cold fill level”or within the“cold
fill range”as listed on the engine coolant reservoir (depending upon
application).
•Refer to the scheduled maintenance guide for service interval
schedules.
•Be sure to read and understandPrecautions when servicing your
vehiclein your owner guide.
If the engine coolant has not been checked at the recommended interval,
the engine coolant reservoir may become low or empty. If the reservoir is
low or empty, add engine coolant to the reservoir. Refer toAdding
engine coolantin this chapter.
Note:Automotive fluids are not interchangeable; do not use engine
coolant, antifreeze or windshield washer fluid outside of its specified
function and vehicle location.
Vehicles with Diesel engines typically are used to carry heavy loads and
accumulate mileage rapidly. These two factors cause the additives in the
coolant to“wear out”in a shorter time. For vehicles equipped with green
coolant, Ford recommends an interim service interval performed at 12
months or 24,000 km (15,000 miles), whichever occurs first. Add
237–295 ml (8–10 oz.) of supplemental coolant additive FW-16 to the
cooling system. For vehicles with extensive idling time, add 237–295 ml
(8–10 oz.) of coolant additive FW-16 after every 500 hours of operation.
(see scheduled maintenance guide). For vehicles equipped with yellow
coolant (Extended Life Coolant), the service interval is five years or
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37

VEHICLE EMISSIONS CONTROL INFORMATION (VECI)
Emissions information appears on
the VECI decal on the engine valve
cover. This decal identifies engine
displacement and provides certain
engine specifications.
SCHEDULED MAINTENANCE SERVICES
Refer to your scheduled maintenance guide for details of maintenance on
your vehicle.
If you are using your vehicle in a manner in which it will remain
stationary (door to door service, taxi, etc.), then it is recommended that
you change the engine oil every 200 engine hours as opposed to a
mileage limit. Since most vehicles are not equipped with hourmeters, it
may be necessary for you to approximate your time and plan engine oil
and filter changes accordingly.
Any modification of the emissions control system could create liability
under federal law (U.S.) if made prior to sale and registration, under the
laws of some states if made thereafter. Further, federal law prohibits
vehicle manufacturers, dealers and other persons engaged in the
business of repairing, servicing, selling, leasing or trading motor vehicles
as well as fleet operations from knowingly removing or rendering an
emissions control system inoperative after sale and delivery to an
ultimate purchaser. In Canada, modifications of the emissions control
system could create liability under applicable federal or provincial laws.
Scheduled maintenance
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