1998 FORD EXPEDITION check engine light

HAZARD LIGHTS CONTROL
Use only in an emergency to warn
traffic of vehicle breakdown,
approaching danger, etc. The
hazard flashers can be operated
when the ignition is off.
²The hazard lights control is
located on top of the steering
column.
²Depress hazard lights control to
activate all hazard flashers
simultaneously.
²Depress control again to turn
the flashers off.
FUEL PUMP SHUT-OFF SWITCH
If the engine cranks but does not
start after a collision, the fuel
pump shut-off switch may have
been activated. The ªFuel Resetº
indicator light will illuminate in the
instrument cluster. The shut-off
switch is a device intended to stop
the electric fuel pump when your
vehicle has been involved in a
substantial jolt.
1. Turn the ignition switch to the
OFF position.
2. Check the fuel system for leaks.
3. If no fuel leak is apparent, reset
the fuel pump shut-off switch by
pushing in the button on the
switch.
4. Turn the ignition switch to the
ON position. Pause for a few
Roadside emergencies
127

SERVICE RECOMMENDATIONS
To help you service your vehicle:
²We highlight do-it-yourself items
in the engine compartment for
easy location.
²We provide a ªService Guideº
which makes tracking routine
service easy.
If your vehicle requires
professional service, your
dealership can provide necessary
parts and service. Check your
ªWarranty Guideº to find out which
parts and services are covered.
Use only recommended fuels,
lubricants, fluids and service parts
conforming to specifications.
Motorcraft parts are designed and
built to provide the best
performance in your vehicle.
PRECAUTIONS WHEN
SERVICING YOUR VEHICLE
Be especially careful when
inspecting or servicing your
vehicle.
²Do not work on a hot engine.
²When the engine is running,
make sure that loose clothing,
jewelry or long hair does not get
caught up in moving parts.
²Do not work on a vehicle with
the engine running in an
enclosed space, unless you are
sure you have enough
ventilation.
Maintenance and care
150

WINDSHIELD WASHER FLUID
Checking and adding washer
fluid
Check the washer fluid whenever
you stop for fuel. The reservoir is
highlighted with a
symbol.
If the level is low, add enough fluid
to fill the reservoir. In very cold
weather, do not fill the reservoir all
the way.
Do not put engine coolant
in the container for the
windshield washer fluid.
Checking and adding washer
fluid for the liftgate
Washer fluid for the liftgate is
supplied by the same reservoir as
the windshield.
ENGINE COOLANT
Check the level of the coolant in
the reservoir at least once a
month. Be sure to read and
understandPrecautions when
servicing your vehiclein this
chapter.
If the engine coolant has not been
checked for a long period of time,
the engine coolant reservoir may
Maintenance and care
158

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
Maintenance and care
162

²To help reduce early nozzle shut
off and fuel spillage, park your
vehicle so the fuel filler door is
level.
²Avoid excessively fast fuel
dispensing rates (over 38 L
[10 gallons] per minute).
²If you spill fuel on the body of
your vehicle, clean it off
immediately. The fuel may dull
or soften the paint if it is not
washed off promptly.
²To replace the fuel cap, align
the tabs on the cap with the
notches on the fuel filler pipe.
Turn it clockwise until it stops.
²Push the fuel door closed.
If the check engine warning light
illuminates and remains illuminated
while the engine is started, the
fuel cap may not be properly
seated. Turn off the engine,
remove the fuel cap and replace it,
being sure to align the cap
properly.
If the cap is lost, replace it with an
authorized Motorcraft or equivalent
part.
Calculating fuel economy
To accurately calculate your
vehicle's fuel economy:
1. Fill the tank completely and
record the initial odometer
reading.
2. Each time you fill the tank,
record the amount of fuel added
(in liters or gallons).
Maintenance and care
182

Guideº are required because they
are considered essential to the life
and performance of your vehicle
and to its emissions system.
If other than Ford, Motorcraft or
Ford authorized parts are used for
maintenance replacements or for
service of components affecting
emission control such non-Ford
parts should be equivalent to
genuine Ford Motor Company
parts in performance and
durability.
Do not park, idle, or drive
your vehicle in dry grass
or other dry ground cover. The
emission system heats up the
engine compartment and exhaust
system, which can start a fire.
Watch for fluid leaks, strange
odors, smoke, loss of oil pressure,
the charging system warning light,
the ªCheck Engineº light or the
temperature warning light. These
events could indicate that the
emission control system is not
working properly.
If you smell exhaust fumes
of any kind inside your
vehicle, have the dealer inspect
and fix your vehicle immediately.
Do not drive if you smell exhaust
fumes. These fumes are harmful
and could kill you.
Do not make any unauthorized
changes to your vehicle or engine.
By law, vehicle owners and anyone
Maintenance and care
184

who manufactures, repairs,
services, sells, leases, trades
vehicles, or supervises a fleet of
vehicles are not permitted to
intentionally remove an emission
control device or prevent it from
working. Information about your
vehicle's emission system is on the
Vehicle Emission Control
Information Decal located on or
near the engine. This decal
identifies engine displacement and
gives some tune up specifications.
Please consult your ªWarranty
Guideº for complete emission
warranty information.
Readiness for
inspection/maintenance (I/M)
testing
In some localities, it may be a legal
requirement to pass an I/M test of
the on-board diagnostic (OBD-II)
system. If your ªcheck
engine/service engine soonº light is
on, reference the applicable light
description in theWarning Lights
and Chimessection of your
owners guide. Your vehicle may
not pass the I/M test with the
ªcheck engine/service engine soonº
light on.
If the vehicle's powertrain system
or its battery has just been
serviced, the OBD-II system is
reset to a ªnot ready for I/M testº
condition. To ready the OBD-II
system for I/M testing, a minimum
of 30 minutes of city and highway
driving is necessary as described
below:
Maintenance and care
185

Aiming headlamps ....................193
Air bag supplemental restraint
system ..........................................78
and child safety seats ..............80
description ................................79
disposal ......................................83
indicator light ...........................82
passenger air bag .....................81
Air cleaner filter .......................170
Air conditioning
auxiliary heater and air
conditioner ................................29
manual heating and air
conditioning system ..23,24,26,28
Air suspension
description ..............................102
warning light .............................11
Ambulance packages ....................3
Anti-lock brake system (ABS)
description ................................99
Battery .......................................168
voltage gauge ............................16
Brake fluid
checking and adding ..............157
Brakes ..........................................98
anti-lock .....................................98
anti-lock brake system (ABS)
warning light .............................99
fluid, checking and adding ....157
Brake-shift interlock .................104
Break-in period .............................2
Bulbs, replacing ........................186
headlamps ...............................187
rear lamps ........................191,192
Changing a tire .........................138
Child safety seats ........................86
Childproof locks ..........................50
Chime
headlamps on ............................13
Cleaning your vehicle ...............194
engine compartment ..............195
fabric ........................................197instrument panel ....................197
plastic parts ............................196
safety belts ..............................197
tail lamps .................................196
washing ....................................194
waxing .....................................194
wheels ......................................195
Compass, electronic ....................42
calibration .................................44
set zone adjustment .................43
Control trac 4WD system .........108
Controls ..................................51,52
Daytime running light system ...20
Defrost
rear window ..............................22
Driving under special
conditions ..................................111
high water ...............................112
slippery roads ..................113,114
Electronic sound system ............52
Emission control system ..........183
Engine ........................................204
check engine temperature
warning, message center .......152
service points ..........................152
Engine block heater ...................96
Engine coolant
checking and adding .......158,159
disposal ....................................161
refill capacities ........................161
Engine oil ...........................153,155
changing oil and oil filter .......156
checking and adding .......153,155
Exhaust fumes ............................96
Fail safe cooling ........................162
Floor mats ...................................53
Foglamps ...................................190
Four-Wheel Drive vehicles
control trac ........................23,108
indicator light ...........................11
special driving
instructions ......................109,110
Index
208