1998 FORD F150 check engine

Battery voltage gauge
This gauge shows the battery
voltage when the ignition is in the
ON position. If the pointer moves
and stays outside the normal
operating range (as indicated),
have the vehicle's electrical system
checked as soon as possible.
Engine oil pressure gauge
This shows the engine oil pressure
in the system. Sufficient pressure
exists as long as the needle
remains in the normal range (the
area between the ªHº and ªLº).
If the gauge indicates low
pressure, switch off the engine
immediately. Check the oil level.
Add oil if needed (refer to
Checking and adding engine oil
in theMaintenance and care
chapter). If the oil level is correct,
have your vehicle checked at your
dealership or by a qualified
technician.
818
L
H
Instrumentation
16

AIR BAG SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Important supplemental
restraint system (SRS)
precautions
The supplemental restraint system
is designed to:
²work with the safety belt to
protect the driver and right
front passenger
²reduce certain upper body
injuries
Failure to follow these
instructions will affect the
performance of the safety belts
and increase the risk of personal
injury.
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10304050
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70
80
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100
120
140
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MPH km/h00000000
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Seating and safety restraints
60

Do not start your vehicle
in a closed garage or in
other enclosed areas. Exhaust
fumes can be toxic. Always open
the garage door before you start
the engine. SeeGuarding
against exhaust fumesin this
chapter for more instructions.
If you smell exhaust fumes
inside your vehicle, have
your dealer inspect your vehicle
immediately. Do not drive if you
smell exhaust fumes.
Important safety precautions
A computer system controls the
engine's idle revolutions per
minute (RPM). When the engine
starts, the idle RPM runs faster to
warm the engine. If the engine idle
speed does not slow down
automatically, have the vehicle
checked. Do not allow the vehicle
to idle for more than ten minutes.
Before starting the vehicle:
1. Make sure all vehicle occupants
have buckled their safety belts. For
more information on safety belts
and their proper usage, refer to
theSeating and safety restraints
chapter.
2. Make sure the headlamps and
vehicle accessories are off.
If starting a vehicle with an
automatic transmission:
Starting
77

3. Turn the key to 4 (ON) without
turning the key to 5 (START).
Make sure the corresponding lights
illuminate briefly. If a light fails to
illuminate, have the vehicle
serviced.
²If the driver's safety belt is
fastened, the light (
) will not
illuminate.
3
2
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4
LOW
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ENGINELOW
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120
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CHECK
SUSPFUEL DOOR
Starting
79

quickly. They are strongly
recommended if you live in a
region where temperatures reach
-23ÉC (-10ÉF) or below.
For best results, plug the heater in
at least three hours before starting
the vehicle. Using the heater for
longer than three hours will not
harm the engine, so the heater can
be plugged in the night before
starting the vehicle.
To prevent electrical
shock, do not use your
heater with ungrounded
electrical systems or
two-pronged (cheater) adapters.
Guarding against exhaust
fumes
Although odorless and colorless,
carbon monoxide is present in
exhaust fumes. Take precautions
to avoid its dangerous effects.
If you ever smell exhaust
fumes of any kind inside
your vehicle, have your dealer
inspect and fix your vehicle
immediately. Do not drive if you
smell exhaust fumes. These
fumes are harmful and could kill
you.
Have the exhaust and body
ventilation systems checked
whenever:
²the vehicle is raised for service
Starting
81

(automatic transmissions) or 1
(First) (manual transmissions)
and increase idle speed. This
aids engine cooling and air
conditioner efficiency.
²Vehicles with trailers should not
be parked on a grade. If you
must park on a grade, place
wheel chocks under the trailer's
wheels.
Launching or retrieving a boat
When backing down a ramp during
boat launching or retrieval,
²Do not allow the static water
level to rise above the bottom
edge of the rear bumper and
²Do not allow waves to break
higher than 15 cm (six inches)
above the bottom edge of the
rear bumper.
Exceeding these limits may allow
water to enter critical vehicle
components, adversely affecting
driveability, emissions and
reliability.
If the rear axle is submerged in
water, the rear axle lubricant
should be checked and changed, if
necessary. The rear axle is filled
with a synthetic lubricant and does
not normally require a lubricant
change for the life of the vehicle.
Rear axle lubricant quantities
should not need to be checked
unless a leak is suspected.
Driving
122

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

4. Check all battery terminals and
remove any excessive corrosion
before you attach the battery
cables.
5. Turn the heater fan on in both
vehicles to protect any electrical
surges. Turn all other accessories
off.
Connecting the jumper cables
1. Position the vehicles so that
they do not touch one another.
2. Switch off the engine. Switch off
any unnecessary electrical
equipment.
3. Connect the positive (+)
terminal of the discharged battery
(1) to the positive (+) terminal of
the booster battery (2).
4. Connect one end of the second
lead to the negative (-) terminal of
the booster battery (3) and the
other end to a metal part of the
engine to be started (4), not to the
negative (-) terminal of the
discharged battery.
5. Make sure that the jump leads
are clear of moving parts of the
engine.
Do not connect the end of
the second cable to the
negative (-) terminal of the
battery to be jumped. A spark
may cause an explosion of the
gases that surround the battery.
+–
+–
41
2
3
Roadside emergencies
148