2002 FORD EXPLORER check engine light

SERVICE RECOMMENDATIONS
To help you service your vehicle:
²We highlight do-it-yourself items in the engine compartment for easy
location.
²We provide a scheduled maintenance guide which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
the 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.
²Keep all lit cigarettes, open flames and other lit material away from
the battery and all fuel related parts.
If you disconnect the battery, the engine must ªrelearnº its idle
conditions before your vehicle will drive properly, as explained inBattery
in this chapter.
Maintenance and care
229

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.
Only use a washer fluid that meets Ford specifications. Refer to
Lubricant specificationsin theCapacities and specificationschapter.
State or local regulations on volatile organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle's paint finish, wiper blades or washer system.
Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling
system components.
Checking and adding washer fluid for the liftgate
Washer fluid for the liftgate is supplied by the same reservoir as the
windshield.
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 -34É F (-36É C). Coolant concentration
testing is possible with a hydrometer or antifreeze tester (such as the
Rotunda Battery and Antifreeze Tester, 014±R1060). The level of coolant
should be maintained at the ªcold fullº of ªcold fill rangeº level in the
coolant reservoir. If the level falls below, add coolant per the instructions
in the Adding Engine Coolant section.
Maintenance and care
241

²Idling for long periods of time (greater than one minute) may waste
fuel.
²Anticipate stopping; slowing down may eliminate the need to stop.
²Sudden or hard accelerations may reduce fuel economy.
²Slow down gradually.
²Driving at reasonable speeds (traveling at 88 km/h [55 mph] uses 15%
less fuel than traveling at 105 km/h [65 mph]).
²Revving the engine before turning it off may reduce fuel economy.
²Using the air conditioner or defroster may reduce fuel economy.
²You may want to turn off the speed control in hilly terrain if
unnecessary shifting between third and fourth gear occurs.
Unnecessary shifting of this type could result in reduced fuel
economy.
²Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
²Resting your foot on the brake pedal while driving may reduce fuel
economy.
²Combine errands and minimize stop-and-go driving.
Maintenance
²Keep tires properly inflated and use only recommended size.
²Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
²Use recommended engine oil. Refer toLubricant Specifications.
²Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found in your vehicle scheduled maintenance guide.
Conditions
²Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
²Carrying unnecessary weight may reduce fuel economy (approximately
0.4 km/L [1 mpg] is lost for every 180 kg [400 lb] of weight carried).
²Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
Maintenance and care
267

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.
Illumination of the ªCheck Engineº light, charging system warning light
or the temperature warning light, fluid leaks, strange odors, smoke or
loss of engine power, could indicate that the emission control system is
not working properly.
Exhaust leaks may result in entry of harmful and potentially
lethal fumes into the passenger compartment.
Do not make any unauthorized changes to your vehicle or engine. By
law, vehicle owners and anyone 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.
Maintenance and care
269

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 diagnostics system. If your ªCheck Engine/Service Engine
Soonº light is on, refer to the description in theWarning Lights and
Chimessection of theInstrumentationchapter. 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 on-board diagnostics system is reset to a ªnot ready for I/M testº
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
²First, at least 10 minutes of driving on an expressway or highway.
²Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
BULBS
Replacing exterior bulbs
Check the operation of the following lamps frequently:
²Headlamps
²Foglamps
²High-mount brakelamp
²Brakelamps
²Turn signals
²License plate lamp
²Tail lamps
²Back-up lamps
Do not remove lamp bulbs unless they can be replaced immediately with
new ones. If a bulb is removed for an extended period of time,
contaminants may enter the lamp housings and affect lamp performance.
Maintenance and care
270

A
Air bag supplemental
restraint system ................155, 159
and child safety seats ............157
description ......................155, 159
disposal ....................................162
driver air bag ..................157, 160
indicator light ...........10, 159, 161
operation .........................157, 160
passenger air bag ...........157, 160
side air bag ..............................159
Air cleaner filter .......................283
Air conditioning ..........................33
automatic temperature
control system ..........................37
auxiliary heater and air
conditioner ................................46
rear seat controls .....................47
Ambulance packages ....................3
Antifreeze
(see Engine coolant) ................241
Anti-lock brake system
(see Brakes) ......................176±177
Anti-theft system ......................125
arming the system ..................125
disarming a
triggered system .....................126
warning light .............................11
Audio system (see Radio) ...51, 74
Automatic transmission
driving an automatic
overdrive .................................182
fluid, adding ............................248
fluid, checking ........................248
fluid, refill capacities ..............283
fluid, specification ..................287
Auxiliary power point ...............112Axle
lubricant specifications ..285, 287
refill capacities ........................283
traction lok ..............................194
B
Battery .......................................251
acid, treating emergencies .....251
charging system
warning light .............................11
jumping a disabled battery ....222
maintenance-free ....................251
replacement, specifications ...283
servicing ..................................251
voltage gauge ............................16
Belt minder ...............................151
Brakes ........................................176
anti-lock ...........................176±177
anti-lock brake system
(ABS) warning light .........11, 177
brake warning light ..................10
fluid, checking and adding ....240
fluid, refill capacities ..............283
fluid, specifications .........285, 287
lubricant specifications ..285, 287
parking ....................................177
pedals (see Power
adjustable foot pedals) ............30
shift interlock ..........................180
Break-in period .............................3
C
Capacities for refilling fluids ....283
Cargo cover ...............................115
Certification Label ....................289
Child safety restraints ..............162
child safety belts ....................162
Index
304

through water .................192, 196
E
Electronic message center .........19
Emergencies, roadside
jump-starting ..........................222
Emission control system ..........268
Engine ........................................287
check engine/
service engine soon light ...........8
cleaning ...................................278
coolant .....................................241
fail-safe coolant ......................246
idle speed control ...................251
lubrication
specifications ..................285, 287
refill capacities ........................283
service points ..................233±234
starting after a collision .........206
Engine block heater .................174
Engine oil ..................................235
checking and adding ..............235
dipstick ....................................235
filter, specifications ........238, 283
recommendations ...................238
refill capacities ........................283
specifications ..................285, 287
Exhaust fumes ..........................175
F
Fail safe cooling ........................246
Floor mats .................................114
Fluid capacities .........................283
Foglamps .....................................28
Four-Wheel Drive
vehicles ................................12, 187control trac .......................50, 188
description ......................188, 190
driving off road .......................191
electronic shift ..........................50
preparing to
drive your vehicle ...................179
Fuel ............................................259
calculating
fuel economy ....................22, 265
cap .....................................10, 264
capacity ...................................283
choosing the right fuel ...........261
comparisons with EPA
fuel economy estimates .........268
detergent in fuel .....................263
filling your vehicle
with fuel ..................259, 264±265
filter, specifications ........265, 283
fuel pump shut-off switch .....206
gauge .........................................17
improving fuel economy ........265
octane rating ...................262, 287
quality ......................................262
running out of fuel .................263
safety information relating
to automotive fuels ................259
Fuses ..................................207, 209
G
Garage door opener ..........101, 103
Gas cap (see Fuel cap) ......10, 264
Gas mileage
(see Fuel economy) .................265
Gauges ...................................13±14
battery voltage gauge ...............16
engine coolant
temperature gauge ...................14
engine oil pressure gauge ........16
fuel gauge ..................................17
Index
306

fog lamps ...................................28
headlamps .................................28
headlamps, flash to pass ..........29
instrument panel, dimming .....29
interior lamps .........................102
replacing bulbs ...............270±274
Lane change indicator
(see Turn signal) ........................89
Liftgate ..............................114, 117
Lights, warning and indicator ......8
air bag ........................................10
anti-lock brakes (ABS) ....11, 177
anti-theft ...................................11
brake ..........................................10
charging system ........................11
cruise indicator .........................12
door ajar ....................................12
fuel cap light .............................10
high beam .................................11
overdrive off ..............................12
safety belt .................................10
service engine soon ....................8
speed control ............................95
turn signal indicator .................11
Load limits .................................194
GAWR ......................................194
GVWR ......................................194
trailer towing ..........................194
Loading instructions .................196
Locks
autolock ...................................124
childproof ................................110
doors ........................................109
Lubricant specifications ...285, 287
Lumbar support, seats .............135
M
Manual transmission .................185fluid capacities ........................283
lubricant specifications ..........287
reverse .....................................187
Message center ...........................19
english/metric button ...............23
system check button ................24
warning messages .....................24
Mirrors .......................................108
automatic dimming
rearview mirror .......................107
cleaning ...................................282
fold away .................................111
heated ......................................111
programmable memory ..........117
side view mirrors (power) .....110
Moon roof ..................................102
Motorcraft parts ................265, 283
O
Octane rating ............................262
Odometer .....................................15
Oil (see Engine oil) ..................235
P
Panic alarm feature,
remote entry system ................117
Parking brake ............................177
Parts (see Motorcraft parts) ....283
Pedals (see Power
adjustable foot pedals) ...............30
Power adjustable foot pedals .....30
Power distribution box
(see Fuses) ...............................213
Power door locks ......................109
Power steering ..........................178
Index
308