1998 FORD F150 warning

shudder while braking, felt mainly
in the steering wheel, the vehicle
most likely needs service.
The ABS operates by detecting the
onset of wheel lock up during
brake applications and
compensating for this tendency.
The front wheels are prevented
from locking even when the brakes
are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during
hard braking.
ABS warning lamp
The
ABSwarning lamp in the
instrument cluster illuminates for
about five seconds when starting
the vehicle. If an ABS fault is
detected, the light will remain on
and your vehicle should be
serviced as soon as possible.
Normal braking is still effective
unless the BRAKE warning lamp is
also illuminated.
Using ABS
²In an emergency or when
maximum efficiency from the
ABS is required, apply
continuous full force on the
brake. The ABS will be activated
immediately, thus allowing you
to retain full steering control of
your vehicle and, providing
!
BRAKE
Driving
84

there is sufficient space, will
enable you to avoid obstacles
and bring the vehicle to a
controlled stop.
²We recommend that you
familiarize yourself with this
braking technique. However,
avoid taking any unnecessary
risks.
Parking brake
Apply the parking brake whenever
the vehicle is parked. To set the
parking brake, press the parking
brake pedal down until the pedal
stops.
The BRAKE warning lamp in the
instrument cluster illuminates and
remains illuminated (when the
ignition is turned ON) until the
parking brake is released.
Always set the parking
brake fully and make sure
that the gearshift is securely
latched in P (Park) (automatic
transmission) or in 1 (First)
(manual transmission).
BRAKE
HOOD
!
BRAKE
Driving
85

Fuse/Relay Location Fuse Amp Rating Description
21 15A Clutch Pedal Position
(CPP) Switch (W/O
RAP), Starter
Interrupt Relay
(W/RAP)
22 10A Air Bag Diagnostic
Monitor, Passive
De-Activation (PAD)
Module
23 10A Trailer tow Battery
Charge Relay, 4X4
Hub Solenoid, 4X2
Hub Solenoid, Flasher
Relay, Shift on the Fly
Relay
24 10A Blower Relay
25 5A 4 Wheel Anti-Lock
Brake System
(4WABS) Module,
4WABS Relay
26 10A Daytime Running
Lamps (DRL) Module,
Right Headlamp
27 5A Main Light Switch,
Fog Lamp Relay
28 10A Left Headlamp
29 5A Autolamp Module,
Instrument Cluster,
Transmission Control
Switch (TCS), Brake
Warning
Resistor/Diode
Assembly (W/RABS)
Roadside emergencies
137

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
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
Maintenance and care
190

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:
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
Maintenance and care
191

Air bag supplemental restraint
system ..........................................60
and child safety seats ..............61
description ................................60
disposal ......................................64
indicator light ...........................63
passenger air bag ...........62,65,66
Air conditioning
manual heating and air
conditioning system .......22,23,26
Air suspension
description ................................87
warning light .............................11
Ambulance packages ....................3
Anti-lock brake system (ABS)
description ................................84
Anti-theft system ........................40
Battery .......................................175
voltage gauge ............................16
Brake fluid
checking and adding ..............162
Brakes ..........................................83
anti-lock .....................................83
anti-lock brake system (ABS)
warning light .............................84
fluid, checking and adding ....162
Brake-shift interlock ...................88
Break-in period .............................2
Bulbs, replacing ........................192
headlamps ...............................193
specifications ..........................197
Changing a tire .........................141
Child safety seats ........................70
Chime
headlamps on ............................12
Cleaning your vehicle ...............198
engine compartment ..............200
fabric ........................................201
instrument panel ....................201
plastic parts ............................201
safety belts ..............................202
tail lamps .................................201washing ....................................198
waxing .....................................199
wheels ......................................199
Clutch
fluid ..........................................163
Controls .......................................19
Daytime running light system ...17
Driving under special
conditions ..................................105
high water ...............................105
slippery roads ..................106,107
Emission control system ..........189
Engine ........................................210
check engine temperature
warning, message
center ...............................155,156
service points ..........................155
Engine block heater ...................80
Engine coolant
checking and adding .......164,165
disposal ....................................166
refill capacities ........................167
Engine oil ...........................156,160
changing oil and oil filter .......161
checking and
adding ........................156,158,160
Exhaust fumes ............................81
Fail safe cooling ........................168
Foglamps ............................196,197
Four-Wheel Drive vehicles .........98
control trac ........................19,102
indicator light ...........................99
lever operated electric shift ....99
Fuel
calculating fuel economy .......188
improving fuel economy ........130
octane rating ...........................187
quality ......................................187
safety information relating to
automotive fuels .....................184
Fuel gauge ...................................13
Fuel pump shut-off switch .......131
Index
216

Fuse panels
instrument panel ....................133
power distribution box ...........138
Fuses ...................................132,133
Gauges, Mechanical ....................13
engine coolant temperature
gauge .........................................14
Hazard flashers .........................131
Headlamps
autolamp system .......................18
flashing ......................................35
high beam .................................35
turning on and off ....................17
Heating ........................................20
High beams
indicator light ...........................10
Hood
release lever ............................154
Ignition
positions of the ignition ...........27
removing the key ......................98
Instrument panel
lighting up panel and
interior .......................................18
Jump-starting your
vehicle .................................147,149
attaching cables ......................148
disconnecting cables ..............149
Keyless entry system
autolock .....................................44
Keys
key in ignition chime ...............12
Lamps
interior lamps ...........................36
map lamps .................................36
parking lamps .........................195
Lights, warning and indicator
air bag ..........................................8
anti-lock brakes (ABS) ..............9
anti-theft ...................................10
brake ............................................9
charging system ........................10check engine ............................6,7
door ajar ....................................11
engine oil pressure ...................10
four-wheel drive ........................11
fuel reset ................................6,12
safety belt ...................................9
turn signal indicator ...................9
Load limits
trailer towing ..........................110
Lubricant specifications ....205,208
Manual transmission ...................92
shift speeds .....................94,96,97
Mirrors
side view mirrors (power) .......38
Odometer .....................................15
Off road driving, 4-wheel drive 104
Overdrive ................................35,36
Panic alarm feature, remote
entry system ................................43
Parking brake ..............................85
Parts (see Motorcraft parts) ....205
Power door locks ........................38
Power steering
fluid, checking and adding ....169
Recreational towing, all wheels
on the ground ...........................123
Relays ........................................132
Remote entry system .................42
illuminated entry ......................47
locking/unlocking doors ...........43
replacement/additional
transmitters ...............................46
replacing the batteries .............45
Reporting safety defects ..........215
Safety restraints
automatic locking mode
(retractor) .......................54,55,56
extension assembly ..................57
for children ...............................68
lap and shoulder belts ........53,54
maintenance ..............................58
proper use .................................51
Index
217

warning light and chime .....12,58
Safety seats for children
attaching with tether straps ....74
automatic locking mode
(retractor) .................................71
tether anchorage hardware .....74
Seats ............................................48
adjusting the seat, manual .......49
adjusting the seat, power ........49
bench (60-40 split) .............48,51
bench seat .................................48
lumbar support .........................50
Servicing your vehicle ..............152
precautions when servicing ...152
Snowplowing ............3,124,125,127
Special notice
utility-type vehicles ....................3
Speed control ..............................28
canceling a set speed ...............31
resuming a set speed ...............32
tap up/tap down .......................30
turning off .................................28
Speedometer ...............................14
Starting your vehicle ........76,77,80
Tachometer
mechanical cluster ...................15
Tailgate ........................................39
removing ...................................40
Tires ....................................179,181
checking the pressure ............181
replacing ..................................183
rotating ....................................182
snow tires and chains ............183
treadwear ................................179
Traction-lok rear axle ..........86,175
Trailer towing .............112,113,114,
115,116,117
tips ...........................................121
Transaxle
fluid, checking and adding
(manual) .................................173Transfer case
fluid checking .........................174
Transmission .............................170
automatic operation ..88,89,90,92
fluid, checking and adding
(automatic) .............................170
Trip odometer .............................15
Turn signal
lever ...........................................27
Vehicle headlamp aiming
device (VHAD) .........................197
Vehicle Identification Number
(VIN) ..........................................214
Vehicle loading ..........................108
Ventilating your vehicle .............82
Warning chimes .............................6
Windows
accessory delay .........................38
power windows, operating .......37
Windshield washer fluid and
wipers
checking and adding fluid .....164
checking and replacing wiper
blades ......................................177
operation ...................................34
Wrecker towing .........................150
Index
218