check engine FORD MUSTANG 1998 4.G Owners Manual

WARNING LIGHTS AND CHIMES
Base instrument cluster
Optional instrument cluster
Turn signal
Illuminates when the
left or right turn signal
or the hazard lights are
turned on. If one or
both of the indicators stay on continuously or flash
faster, check for a burned-out turn signal bulb. Refer
toExterior bulbsin theMaintenance and care
chapter.
P! BRAKE
L
0
00000 00
C
E
FH
LH
10 203020 406080100
120
140
160
180
405060 70
80
90
100
11 0
1204
5
6
7 3
2
1
H
THEFT
RPMX1000
FUEL DOORSELECT/RESET
LOW
FUELO/D
OFF AIR
BAGSERVICE
ENGINE
SOON
MPH km/h
ABS
.
P! BRAKE
L
0
00000 00
C
E
FH
LH
102040608020 40608010 012 0 14 0
160
180
200
220
240
100
120
140
305070 90
110
13 0
1504
5
6
7
8 3
2
1
H
THEFT
RPMX1000
FUEL DOORSELECT/RESET
LOW
FUELO/D
OFF AIR
BAGSERVICE
ENGINE
SOON
MPH km/h
ABS
.
Instrumentation
6

Service engine soon
Your vehicle is
equipped with a
computer that monitors
the engine's emission
control system. This
system is commonly known as the On Board
Diagnostics System (OBD II). The OBD II system
protects the environment by ensuring that your
vehicle continues to meet government emission
standards. The OBD II system also assists the
service technician in properly servicing your vehicle.
TheService Engine Soonindicator light illuminates
when the ignition is first turned to the ON position
to check the bulb. If it comes on after the engine is
started, one of the engine's emission control systems
may be malfunctioning. The light may illuminate
without a driveability concern being noted. The
vehicle will usually be drivable and will not require
towing.
What you should do if the Service Engine Soon
light illuminates
Light turns on solid:
This means that the OBD II system has detected a
malfunction.
Temporary malfunctions may cause yourService
Engine Soonlight to illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may
misfire or run poorly.)
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been properly installed
and securely tightened.
These temporary malfunctions can be corrected by
filling the fuel tank with good quality fuel and/or
properly installing and securely tightening the gas
cap. After three driving cycles without these or any
other temporary malfunctions present, theService
Engine Soonlight should turn off. (A driving cycle
SERVICE
ENGINE
SOON
Instrumentation
8

Check coolant
Illuminates when the
coolant level in the
coolant reservoir is low
and more needs to be
added. This lamp will also illuminate when the
ignition is turned to ON and the engine is off. For
more information on adding engine coolant, refer to
Engine coolantin theMaintenance and care
chapter.
Safety belt warning chime
Chimes to remind you to fasten your safety belts.
For information on the safety belt warning chime,
refer to theSeating and safety restraintschapter.
Supplemental restraint system (SRS) warning
chime
For information on the SRS warning chime, refer to
theSeating and safety restraintschapter.
Key-in-ignition warning chime
Sounds when the key is left in the ignition in the
OFF/LOCK or ACC position and the driver's door is
opened.
Headlamps on warning chime
Sounds when the headlamps or parking lamps are
on, the ignition is off (and the key is not in the
ignition) and the driver's door is opened.
Instrumentation
11

Trip odometer
Registers the
kilometers (miles) of
individual journeys.
Press the reset button
until a ªTº appears in
the display (this
represents the trip
mode). Press and hold
the button for
2.5 seconds to reset.
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 ªLº and ªHº).
If the gauge indicates low pressure, stop the vehicle
as soon as safely possible and switch off the engine
immediately. Check the oil level. Add oil if needed
(refer toEngine oilin theMaintenance and care
chapter). If the oil level is correct, have your vehicle
checked at your dealership or by a qualified
technician.
0
00000 00
4
5
6
7
8 3
2
1RPMX1000
SELECT/RESET
.
LH
LH
Instrumentation
15

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
at high engine RPM.
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 restraintschapter.
2. Make sure the headlamps and vehicle accessories
are off.
If starting a vehicle with an automatic transmission:
²Make sure the
parking brake is set.
²Make sure the gearshift is in P (Park).
If starting a vehicle with a manual transmission:
²Make sure the parking brake is set.
²Push the clutch
pedal to the floor.
Starting
84

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.
²the sound of the exhaust system changes.
²the vehicle has been damaged in a collision.
Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of California to
cause cancer, and birth defects or other
reproductive harm.
Important ventilating information
If the engine is idling while the vehicle is stopped in
an open area for long periods of time, open the
windows at least 2.5 cm (one inch).
Adjust the heating or air conditioning (if equipped)
to bring in fresh air.
Improve vehicle
ventilation by keeping
all air inlet vents clear
of snow, leaves and
other debris.
Starting
87

BRAKES
Your service brakes are self-adjusting. Refer to the
scheduled maintenance guide for scheduled
maintenance.
Occasional brake noise is normal and often does not
indicate a performance concern with the vehicle's
brake system. In normal operation, automotive brake
systems may emit occasional or intermittent squeal
or groan noises when the brakes are applied. Such
noises are usually heard during the first few brake
applications in the morning; however, they may be
heard at any time while braking and can be
aggravated by environmental conditions such as
cold, heat, moisture, road dust, salt or mud. If a
ªmetal-to-metal,º ªcontinuous grindingº or
ªcontinuous squealº sound is present while braking,
the brake linings may be worn-out and should be
inspected by a qualified service technician.
Anti-lock brake system (ABS) (if equipped)
On vehicles equipped with an anti-lock braking
system (ABS), a noise from the hydraulic pump
motor and pulsation in the pedal may be observed
during ABS braking events. Pedal pulsation coupled
with noise while braking under panic conditions or
on loose gravel, bumps, wet or snowy roads is
normal and indicates proper functioning of the
vehicle's anti-lock brake system. The ABS performs a
self-check at 17 km/h (10 mph) after you start the
engine and begin to drive away. A brief mechanical
noise may be heard during this test. This is normal.
If a malfunction is found, the ABS warning light will
come on. If the vehicle has continuous vibration or
shudder in the steering wheel while braking, the
vehicle should be inspected by a qualified service
technician.
Driving
88

Servicing after towing
If you tow a trailer for long distances, your vehicle
will require more frequent service intervals. Refer to
your Scheduled Maintenance guide for more
information.
Trailer towing tips
²Practice turning, stopping and backing up in an
area before starting on a trip to get the feel of the
vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs
and other obstacles.
²Allow more distance for stopping with a trailer
attached.
²The trailer tongue weight should be 10% of the
loaded trailer weight.
²After you have traveled 80 km (50 miles),
thoroughly check your hitch, electrical
connections and trailer wheel lug nuts.
²When stopped in traffic for long periods of time in
hot weather, place the gearshift in P (Park) 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.
DRIVING THROUGH WATER
Do not drive quickly through standing water,
especially if the depth is unknown. Traction or brake
capability may be limited and if the ignition system
gets wet, your engine may stall. Water may also
enter your engine's air intake and severely damage
your engine.
If driving through deep or standing water is
unavoidable, proceed very slowly. Never drive
through water that is higher than the bottom of the
hubs.
Driving
106

HAZARD FLASHER
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.
²
Depress hazard lights
control to activate all
hazard flashers
simultaneously.
²Depress control again to turn the flashers off.
FUEL PUMP SHUT-OFF SWITCH
After a collision, if the engine cranks but does not
start, 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 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 reset button.
4. Turn the ignition to the ON position. Pause for a
few seconds and return the key to the OFF position.
5. Make a further check for leaks in the fuel system.
Roadside emergencies
108

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 can
burn skin, eyes, and clothing, if contacted.
Do not attempt to push start your vehicle.
Automatic transmissions do not have
push-start capability.
Preparing your vehicle
1.Use only a 12±volt supply to start your
vehicle.
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 the two vehiclesdo
nottouch. Set the parking brake on both vehicles
and stay clear of the engine cooling fan and other
moving parts.
4. Check all battery terminals and remove any
excessive corrosion before you attach the battery
cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect
any electrical surges. Turn all other accessories off.
Roadside emergencies
120