1998 FORD EXPEDITION Owners Manual

may void your warranty of your
vehicle's engine cooling system.
Recycled engine coolant
Ford Motor Company recommends
that Ford and Lincoln-Mercury
dealers use recycled engine
coolant produced by
Ford-approved processes. Not all
coolant recycling processes
produce coolant which meets Ford
specification ESE-M97B44±A, and
use of such coolant may harm
engine and cooling system
components.
Always dispose of used
automotive fluids in a responsible
manner. Follow your community's
regulations and standards for
recycling and disposing of
automotive fluids.
Coolant refill capacity
To find out how much fluid your
vehicle's cooling system can hold,
refer toRefill capacitiesin the
Capacities and specifications
chapter.
Have your dealer check the engine
cooling system for leaks if you
have to add more than a liter
(quart) of engine coolant per
month.
Severe winter climate
If you drive in extremely cold
climates (less than ±36ÉC [±34ÉF]),
it may be necessary to increase the
coolant concentration above 50%.
Refer to the chart on the coolant
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161

container to ensure the coolant
concentration in your vehicle is
such that the coolant will not
freeze at the temperature level in
which you drive during winter
months. Never increase the engine
coolant concentration above 60%.
Leave a 50/50 mixture of engine
coolant and water in your vehicle
year-round in non-extreme
climates.
What you should know about
fail-safe cooling
If the engine coolant supply is
depleted, this feature allows the
vehicle to be driven temporarily
before incremental component
damage is incurred. The ªfail safeº
distance depends on ambient
temperatures, vehicle load and
terrain.
How fail-safe cooling works
If the engine overheats, the engine
will automatically switch from
eight to alternating four cylinder
operation. Each disabled cylinder
acts as an air pump and cools the
engine.
When this occurs, the engine
coolant temperature gauge will
move into the red area and the
light illuminates.
The check engine light will
illuminate, indicating that vehicle
service is required.
The vehicle will still operate, but
will have limited engine power and
TEMPH
C
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162

no air conditioning capability.
Continued operation will increase
engine temperature and cause the
engine to completely shut down.
The vehicle will coast to a stop.
As the engine temperature cools,
the engine may be re-started. Take
your vehicle to a service facility as
soon as possible to minimize
engine damage.
When fail-safe mode is
activated
²Pull off the road as soon as
possible.
²Immediately turn the engine off
to prevent severe engine
damage.
²Wait for the engine to cool.
²Check the coolant level.
CHECKING AND ADDING
POWER STEERING FLUID
Check the power steering fluid at
least twice a year. If adding fluid is
necessary, use only MERCONt
ATF power steering fluid.
1. Start the engine and let it run
until it reaches normal operating
temperature (the engine coolant
temperature gauge will be near the
center of the NORMAL band).
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163

2. While the engine idles, turn the
steering wheel left and right
several times.
3. Turn the engine off.
4. Check the fluid level in the
reservoir. It should be between the
MIN and MAX lines. Do not add
fluid if the level is in this range.
5. If the fluid is low, add fluid in
small amounts, continuously
checking the level until it reaches
the range between the MIN and
MAX lines. Be sure to put the cap
back on the reservoir.
TRANSMISSION FLUID
Checking and adding automatic
transmission fluid
Follow the scheduled service
intervals outlined in the ªService
Guide.º
Before adding any fluid, make sure
the correct type is used. The type
of fluid used is normally indicated
on the dipstick and/or dipstick
handle and also in theLubricant
specificationssection in the
MAX
MIN
MAX
MIN
Maintenance and care
164

Capacities and specifications
chapter.
An overfill condition of
transmission fluid may cause
shift and/or engagement
concerns and/or possible
damage.
Do not drive the vehicle if the fluid
level is below the hole at the
bottom of 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) (see figure to the
right).
Your transmission does not use up
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.
Transmission fluid should be
checked at normal operating
temperatures 66ÉC-77ÉC
(150ÉF-170ÉF) on a level surface.
The normal operating temperature
can be reached after approximately
32 km (20 miles) of driving.
The transmission fluid should be in
this range if at normal operating
temperature (66ÉC-77ÉC
[150ÉF-170ÉF]) (see figure to the
right).
DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK
ADD COLD HOT DO NOT ADD
DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK
ADD COLD HOT DO NOT ADD
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165

The transmission fluid should be in
this range if at room temperature
(10ÉC-35ÉC [50ÉF-95ÉF]) (see
figure to the right).
If your vehicle has been operated
for an extended period at high
speeds, in city traffic during hot
weather or pulling a trailer, the
vehicle should be turned off for
about 30 minutes to allow the fluid
to cool before checking.
1. Park the vehicle on a level
surface and engage the parking
brake.
2. With the parking brake engaged
and your foot on the brake pedal,
start the engine and move the
gearshift lever through all of the
gear ranges. Allow sufficient time
for each gear to engage.
3. Latch the gearshift lever in P
(Park) and leave the engine
running.
4. Remove the dipstick, wiping it
clean with a clean, dry lint free
rag.
5. Install the dipstick making sure
it is fully seated in the filler tube.
6. Remove the dipstick and inspect
the fluid level. The fluid level
should be in the crosshatched area
on the dipstick.DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK
ADD COLD HOT DO NOT ADD
P R N D 2 1
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166

7. If necessary, add fluid in .25L
(1/2 pint) increments through the
filler tube until the level is correct.
8. If an overfill occurs, excess fluid
should be removed by a qualified
technician.
An overfill condition of
transmission fluid may cause
shift and/or engagement
concerns and/or possible
damage.
If the fluid level is above the top
notch of the hot range after driving
the vehicle for approximately 30
km (20 miles), excess fluid should
be removed by a qualified
technician.
DRIVELINE UNIVERSAL JOINT
AND SLIP YOKE
The universal joints standard with
your vehicle do not require
lubrication. If the original universal
joints are replaced with universal
joints equipped with grease
fittings, lubrication will be
necessary.
DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK
ADD COLD HOT DO NOT ADD
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167

BATTERY
Your vehicle may be equipped with
a Motorcraft maintenance-free
battery. If the original equipment
battery needs replacing, it may be
replaced with a low-maintenance
battery. The low-maintenance
battery normally does not require
additional water during its life of
service. However, for severe usage
or in high temperature climates,
check your battery electrolyte
level, at least every 24 months or
40,000 km (24,000 miles). Keep
the electrolyte in each cell up to
the ªlevelº indicator. Do not overfill
the battery cells.
If the electrolyte level in the
battery is low, you can add plain
tap water to the battery, as long as
you do not use hard water (water
with a high alkali content). If
possible, however, try to only fill
the battery cells with distilled
water. If the battery needs water
often, have the charging system
checked.
For longer, trouble-free operation,
keep the top of the battery clean
and dry. Also, make certain the
battery cables are always tightly
fastened to the battery terminals.
If you see any corrosion on the
battery or terminals, remove the
cables from the terminal(s) and
clean with a wire brush. You can
neutralize the acid with a solution
of baking soda and water. Reinstall
the cables when you are done
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168