service interval FORD EXPEDITION 1997 1.G Owners Manual

Servicing while towing
If you tow a trailer for long
distances, your vehicle requires
more frequent service than a
vehicle not used for towing. Refer
to the ªService GuideºSevere
Duty Schedulefor more
information on maintenance
intervals.
Using a step bumper
The rear bumper is equipped with
an intregal hitch and requires only
a ball with a 1 inch shank
diameter. The bumper has a 1814
kg (4000 lb) trailer weight and 181
kg (400 lb) tongue weight
capability.
Use a frame mounted weight
distributing hitch for trailers over
1814 kg (4000 lb).
FUEL CONSUMPTION
Fuel economy can be improved by
avoiding:
²lack of regular, scheduled
maintenance
²excessive speed
²rapid acceleration
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Driving
133

CHECKING AND ADDING
TRANSMISSION FLUID
Checking and adding automatic
transmission fluid (if equipped)
Service the automatic transmission
according to the scheduled
intervals in the9Service Guide.9
Before adding any fluid, make sure
the correct type will be used. This
information is indicated on the
dipstick.
²4R7OW automatic transmissions
are used with 4.6 L engine
applications.
²E4OD automatic transmissions
are used with 5.4 L engine
applications.
Do not drive the vehicle if the fluid
level is below the bottom hole on
the blade type dipstick (4R70W
transmission) or below the COLD
area on the bullet type dipstick
(E4OD transmission) and outside
temperatures are above 10ÉC
(50ÉF).
Your vehicle does not use up
transmission fluid. However, it is
recommended that you check the
transmission fluid at least twice a
year. The fluid level should be
checked if the transmission is not
working properly, i.e., if the
transmission slips or shifts slowly
or if you notice some sign of fluid
leakage.
It is preferable to check the
transmission fluid level at normal
operating temperature, afterexd_checking_adding_autotrans
Maintenance and care
172

AIR CLEANER FILTER
MAINTENANCE
Refer to the ªService Guideº for
the appropriate intervals for
changing the air cleaner filter.
Do not start your engine
with the air cleaner
removed and do not remove it
while the engine is running.
CHANGING THE AIR FILTER
1. Loosen the clamp that secures
the air cleaner in place.
2. Separate the two halves of the
air cleaner.
3. Remove the air filter element
from the open end of the engine
air cleaner and replace it with a
new element. Be careful not to
crimp the filter edges between
halves. This could cause filter
damage if not properly seated.
4. Replace the two halves of the
air cleaner and secure the clamp.
For information on replacement air
filter elements, refer to the
Capacities and specifications
chapter.
CHECKING AND REPLACING
WIPER BLADES
Checking wiper blades
Check the windshield wiper blades
at least twice a year or whenever
they seem to work less effectively
than usual. Substances such as
tree sap and some hot wax
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Maintenance and care
179

performance on the laboratory test
wheel than the minimum required
by law.
The temperature grade for
this tire is established for a
tire that is properly inflated and
not overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.
Checking the tire pressure
Check the tire pressure
periodically and inflate tires as
necessary. To check the tire
pressure, insert the tire pressure
gauge into the valve system.
The cold pressure amount is listed
on the Safety Compliance
Certification label.
Improperly inflated tires
can affect vehicle handling
and can fail suddenly, possibly
resulting in loss of vehicle
control.
Rotating the tires
Rotate your tires at regular
intervals for even wear. Rotation
intervals are listed in the ªService
Guideº.
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Maintenance and care
184

²Do not turn off the ignition
while your vehicle is in motion.
²Have maintenance performed
according to intervals in the
ªService Guideº.
If you notice one or more of the
following, the emission system may
not be functioning properly; have
the vehicle serviced as soon as
possible:
²Fluid leaks
²
lights illuminate in
the instrument cluster and
remain lit
²Strange odors
²Engine runs for more than five
seconds after shut off or engine
misfires, surges, stalls or
backfires
²Loss of oil pressure
34
5
2
1
LHLH
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Maintenance and care
195