1998 FORD F150 ignition

Engine Rear axle
ratioMaximum
GCWR-kg
(lbs.)Maximum
trailer
weight-kg
(lbs.)Maximum
frontal area
of trailer-m
(ft)
SuperCab F-250
4.6L 3.31 3 261 (7 200) 952 (2 100) 5.52 (60)
4.6L 3.73 3 533 (7 800) 1 224 (2 700) 5.52 (60)
Preparing to tow
Use the proper equipment for
towing a trailer, and make sure it
is properly attached to your
vehicle. See your dealer or a
reliable trailer dealer if you require
assistance.
Hitches
Do not use hitches that clamp onto
the vehicle's bumper or attach to
the axle. You must distribute the
load in your trailer so that 10 to
15% of the total weight of the
trailer is on the tongue.
Load equalizing hitch
When hooking up a trailer using a
load equalizing hitch, always use
the following procedure:
1. Park the unloaded vehicle on a
level surface. With the ignition on
and all doors closed, allow the
vehicle to stand for several
minutes so that it can level.
2. Turn the air suspension (if
equipped) control to OFF.
Driving
118

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 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
seconds and return the key to the
OFF position.
Roadside emergencies
131

Fuse/Relay Location Fuse Amp Rating Description
30 30A Radio Noise Capacitor,
Ignition Coil, PCM
Power Diode
31 Ð Not Used
Relay 1 Ð Interior Lamp Relay
Relay 2 Ð Battery Saver Relay
Not Used Ð Not Used
Relay 4 Ð One Touch Down
Relay
Relay 5 Ð ACC Delay Relay
Power distribution box
The power distribution box is
located in the engine
compartment. The power
distribution box contains
high-current fuses that protect
your vehicle's main electrical
systems from overloads.
Always disconnect the
battery before servicing
high current fuses.
Always replace the cover
to the Power Distribution
Box before reconnecting the
battery or refilling fluid
reservoirs.
Roadside emergencies
138

Fuse/Relay Location Fuse Amp Rating Description
4 15A* Rear Air Suspension
(RAS)
5 20A* Horn Relay
6 15A* Radio, Premium Sound
Amplifier, CD Changer
7 15A* Main Light Switch,
Park Lamp Relay
8 30A* Main Light Switch,
Headlamp Relay,
Multi-Function Switch
9 15A* Daytime Running
Lamps (DRL) Module,
Fog Lamp Relay
10 25A* Auxiliary Power
Socket
11 Ð Not Used
12 Ð Not Used
13 Ð Not Used
14 60A**/20A** 4 Wheel Anti-Lock
Brake System
(4WABS)
Module/Ignition Switch
(W/RABS Only)
15 50A** Rear Air Suspension
Compressor
16 40A** Trailer Tow Battery
Charge Relay, Engine
Fuse Module (Fuse 2)
17 30A** Shift on the Fly Relay,
Transfer Case Shift
Relay
18 30A** Power Seat Control
Switch
19 20A** Fuel Pump Relay
Roadside emergencies
140

Fuse/Relay Location Fuse Amp Rating Description
20 50A** Ignition Switch
21 50A** Ignition Switch
22 50A** Junction Box
Fuse/Relay Panel
Battery Feed
23 40A** Blower Relay
24 30A** PCM Power Relay,
Engine Fuse Module
(Fuse 1)
25 30A** Junction Box
Fuse/Relay Panel, ACC
Delay Relay
26 Ð Not Used
27 Ð Not Used
28 30A** Trailer Electronic
Brake Controller
29 Ð Not Used
*Mini fuses **Maxi
fuses
CHANGING THE TIRES
If you get a flat tire while driving,
do not apply the brake heavily.
Instead, gradually decrease your
speed. Hold the steering wheel
firmly and slowly move to a safe
place on the side of the road.
Spare tire information
Your vehicle is equipped with a
spare tire that may be used as a
spare or a regular tire. The spare
tire is not equipped with wheel
trim. The wheel trim from the
original wheel/tire may be used on
the spare.
Roadside emergencies
141

JUMP STARTING YOUR
VEHICLE
The gases around the
battery can explode if
exposed to flames, sparks, or lit
cigarettes. An explosion could
result in injury or vehicle
damage.
Do not push start your
vehicle. You could damage
the catalytic converter.
Batteries contain sulfuric
acid which burns skin,
eyes, and clothing.
Preparing your vehicle
Also see the label on the battery.
1. Use only a 12±volt supply to
start your vehicle. If you connect
your battery to a 24±volt power
supply you can damage your
starter, ignition system and other
electrical components.
2. Do not disconnect the battery of
the disabled vehicle as this could
damage the vehicle's electrical
system.
3. Park the booster vehicle close to
the hood of the disabled vehicle
making sure theydo nottouch.
Set the parking brake on both
vehicles and stay clear of the
engine cooling fan and other
moving parts.
Roadside emergencies
147

treatments used by commercial car
washes reduce the effectiveness of
wiper blades.
Checking the wiper blades
If the wiper blades do not wipe
properly, clean both the windshield
and wiper blades using undiluted
windshield wiper solution or a mild
detergent. Rinse thoroughly with
clean water. To avoid damaging the
blades, do not use fuel, kerosene,
paint thinner or other solvents.
Changing the wiper blades
When replacing wiper blade
assemblies, always use a
Motorcraft part or equivalent. To
make replacing the wipers easy,
turn the ignition to ACC, then turn
the wipers on. When the wipers
reach the vertical position, turn
the ignition to LOCK.
To replace the wiper blades:
1. Pull the wiper arm away from
the windshield and lock into the
service position.
2. Turn the blade at an angle from
the wiper arm. Push the lock pin
with a screwdriver to release the
blade and pull the wiper blade
down toward the windshield to
remove it from the arm.
3. Attach the new wiper to the
wiper arm and press it into place
until a click is heard.
Maintenance and care
178

Keep a record for at least one
month. This will provide an
accurate estimate of the vehicle's
fuel economy.
EMISSION CONTROL SYSTEM
Your vehicle is equipped with
various emission control
components and a catalytic
converter which will enable your
vehicle to comply with applicable
exhaust emission standards. To
make sure that the catalytic
converter and other emission
control components continue to
work properly:
²Use only unleaded fuel.
²Avoid running out of fuel.
²Do not turn off the ignition
while your vehicle is moving,
especially at high speeds.
²Have the services listed in your
ªService Guideº performed
according to the specified
schedule.
The Scheduled Maintenance
Services listed in the ªService
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
Maintenance and care
189