1999 FORD EXPLORER check engine

Habits
²Smooth, moderate operation can yield up to 10% savings in fuel.
²Steady speeds without stopping will usually give the best fuel
economy.
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.
²Drive at reasonable speeds (traveling at 105 km /h [65 mph] uses 15%
more fuel than traveling at 88 km/h [55 mph]).
²Revving the engine before turning it off may reduce fuel economy.
²Use of the air conditioner or defroster may reduce fuel economy.
²Use of speed control (if equipped) may improve fuel economy. Speed
control can help maintain a constant speed and reduce speed changes.
You may want to turn off the speed control in hilly terrain as
unnecessary shifting between third and fourth gears may occur and
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.
Maintenance and care
233

²Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
²Have the items listed in your Scheduled Maintenance Guide performed
according to the specified schedule.
The scheduled maintenance items listed in the Scheduled Maintenance
Guide are 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.
Illumination of the charging system warning light,Check Engine
indicator light or the temperature warning light, fluid leaks, strange
odors, smoke or loss of oil pressure, 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, items, 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
235

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, 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 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:
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.
EXTERIOR 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
236

Fluid Ford Part
NameApplication
Capacity
Rear axle
lubricant
2,Motorcraft SAE
80W90
Premium Rear
Axle LubricantRefer to
footnote 3
2.9-3.1L (5.5-5.8
pints) Motorcraft SAE
75W140 High
Performance
Synthetic Rear
Axle LubricantRefer to
footnote 4
Windshield
washer fluidUltra-Clear
Windshield
Washer
ConcentrateAll
2.6L (2.7 quarts)
1If your engine coolant is green in color, use Ford Premium Cooling
System Fluid. If your coolant is orange in color, use Ford Extended Life
Engine Coolant. Refer toAdding engine coolant, in the Maintenance
and Care chapter.
2Fill to 6 mm to 14 mm (1/4 inch to 9/16 inch) below bottom of fill hole.
3Vehicles equipped with 4.0L OHV V6 and 4.0L SOHC V6 engines may
be equipped with a conventional rear axle. Refer to your Scheduled
Maintenance Guide for axle fluid change intervals.
4Vehicles equipped with 4.0L OHV V6 and 4.0L SOHC V6 engines and
3.73:1 or 4.10:1 rear axle ratios or with a 5.0L V8 engine require
synthetic rear axle lubricant. Rear axles containing synthetic lubricant
are lubricated for life. These lubricants are not to be checked or changed
unless a leak is suspected or service is required. The axle lubricant
should be changed any time the axle has been submerged in water.
Add 118 ml (4 oz.) of additive friction modifier C8AZ-19B546-A, Ford
specification EST-M2C118±A for complete refill of Traction-Lok axles.
Capacities and specifications
249

Air bag supplemental restraint
system ........................................126
and child safety seats ............128
description .......................127,130
disposal ....................................133
indicator light ..................130,132
passenger air bag ............128,131
Air conditioning
automatic temperature
control system .23,24,25,26,27,28
rear seat controls .....................29
Air suspension
description ..............................148
warning light .............................10
All Wheel Drive (AWD),
driving off road .........................162
Armrests ....................................102
Automatic transmission
driving an automatic
overdrive .....150,151,152,153,154
Axle
refill capacities ........................247
Battery
voltage gauge ............................14
Brakes ........................................145
anti-lock ............................145,146
anti-lock brake system (ABS)
warning light ...........................146
fluid, checking and adding ....208
shift interlock ..........................149
Break-in period ..........................2,3
Cargo area shade ......................104
Cargo cover ...............................104
CD player .....................75,77,78,79
Child safety seats
attaching with tether straps ..138
in rear seat ..............................136
tether anchorage hardware ...138
Cleaning your vehicle ...............241
engine compartment ..............242
exterior .............................242,244
exterior lamps .........................244interior ..............................245,246
plastic parts ............................244
washing ....................................241
waxing .....................................242
wheels ......................................244
windows ..................................246
wiper blades ............................245
woodtone trim ........................246
Clutch
fluid ..........................................209
operation while driving ...154,155
recommended shift speeds ....156
Compass, electronic ....................90
calibration .................................92
set zone adjustment .................91
Console ...............................101,102
overhead ...............................87,88
rear ..........................................102
Controls
power seat ...............................117
Coolant ...............................212,213
checking and adding ..............211
refill capacities ........................213
Defrost
rear window ..............................30
Driveline universal joint and
slip yoke ....................................219
Driving under special
conditions ...........................161,164
sand ..................................160,163
snow and ice ......160,162,163,164
through water ..................160,163
Emission control system ..........234
Engine
check engine/service engine
soon light ....................................6
coolant .....................................210
idle speed control ...................219
service points ............203,204,205
starting after a collision .........178
Engine block heater .................143
Index
257

Engine oil
checking and adding ..............207
dipstick ....................................205
specifications ...................205,207
Exhaust fumes ..........................143
Floor mats .................................103
Four-Wheel Drive
vehicles ..............................9,10,157
control trac .............................157
description .......................157,159
driving off road ................160,162
electronic shift ..........................31
Fuel
choosing the right fuel ...........228
comparisons with EPA fuel
economy estimates .................234
detergent in fuel .....................229
filling your vehicle
with fuel ...........................227,230
gauge .........................................14
quality ......................................229
running out of fuel .................230
safety information relating to
automotive fuels .....................227
Fuses ............................179,180,181
Gas mileage
(see Fuel economy) .........231,232,
233,234
Gauges .........................................11
engine coolant temperature
gauge .........................................12
engine oil pressure gauge ........14
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................167
Hazard flashers .........................178
Head restraints ...........116,118,119
Headlamps
aiming ......................................241
autolamp system .......................97
bulb specifications ..................240
high beam ..............................9,19warning chime ..........................11
Heating ........................................20
heating and air conditioning
system .............................20,21,22
Hood ..........................................201
Ignition .......................................252
Inspection/maintenance (I/M)
testing ........................................236
Instrument panel
cleaning ...................................245
Keyless entry system
autolock ............................109,110
keypad .....................................111
locking and unlocking doors ..112
programming entry
code ..................................111,112
Keys
key in ignition chime ...............11
positions of the ignition ...........79
Lamps
daytime running light ...............19
fog lamps ...................................19
headlamps .................................19
headlamps, flash to pass ..........20
instrument panel, dimming .....20
replacing bulbs ...............236,237,
238,239,240
Lane change indicator
(see Turn signal) ........................79
Liftgate ......................................103
Lights, warning and indicator
air bag ..........................................7
anti-lock brakes (ABS) ..............8
anti-theft .....................................9
brake ............................................8
charging system ..........................9
check coolant ..............................9
cruise indicator .........................10
door ajar ....................................10
fuel reset .....................................7
overdrive off ..............................10
safety belt ...................................8
Index
258