2001 FORD MUSTANG check engine

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 10 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
104

3. Turn the key to 4
(ON) without turning
the key to 5 (START).
If there is difficulty in
turning the key, firmly
rotate the steering
wheel left and right
until the key turns
freely. This condition may occur when:
²front wheels are turned
²front wheel is against the curb
²steering wheel is turned when getting in or out of
the vehicle
Make sure the corresponding lights illuminate or
illuminate briefly. If a light fails to illuminate, have
the vehicle serviced.
²If the driver's safety belt is fastened, the
light
may not illuminate.
1
2
34
5
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
.
CHECK
FUEL
CAP
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
.
CHECK
FUEL
CAP
Starting
105

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.
²the sound of the exhaust system changes.
²the vehicle has been damaged in a collision.
WARNING: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. In addition, certain fluids
contained in vehicles and certain products of
component wear 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
107

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)
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 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
108

Trailer towing tips
²Practice turning, stopping and backing up 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.
Recreational towing (all wheels on the ground)
Follow these guidelines for your specific powertrain
combination to tow your vehicle with all four wheels
on the ground (such as behind a recreational vehicle).
These guidelines are designed to ensure that your
transmission is not damaged due to insufficient
lubrication.
All Rear Wheel Drive (RWD) vehicles
This applies to all cars and 4x2 trucks/sport utilities
with rear wheel drive capability.
An example of recreational towing is towing your
vehicle behind a Motorhome. The following
recreational towing guidelines are designed to
ensure that your transmission is not damaged.
²Place the transmission in N (Neutral).
²Maximum speed is 56 km/h (35 mph).
²Maximum distance is 80 km (50 miles).
Driving
127

After a collision, if the engine cranks but does not
start, the fuel pump shut-off switch may have been
activated.
The fuel pump shut-off
switch is located on
the left side of the
trunk behind teh left
rear tail light and the
trunk liner.
Use the following procedure to reset the fuel pump
shut-off switch.
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 on 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.
FUSES AND RELAYS
Fuses
If electrical
components in the
vehicle are not
working, a fuse may
have blown. Blown
fuses are identified by a broken wire within the fuse.
15
Roadside emergencies
131

shift firmly. This operation is considered normal and
will not effect function or durability of the
transmission. Over time, the adaptive learning
process will fully update transmission operation to
its optimum shift feel.
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.
5. Turn the heater fan on in both vehicles to protect
any electrical surges. Turn all other accessories off.
Connecting the jumper cables
1. Connect the positive (+) booster cable to the
positive (+) terminal of the discharged battery.
Note:In the illustrations,lightning boltsare used
to designate the assisting (boosting) battery.
+–+–
Roadside emergencies
142

SERVICE RECOMMENDATIONS
To help you service your vehicle:
²We highlight do-it-yourself items in the engine
compartment for easy location.
²We provide a scheduled maintenance guide which
makes tracking routine service easy.
If your vehicle requires professional service, your
dealership can provide the necessary parts and
service. Check yourWarranty Guideto find out
which parts and services are covered.
Use only recommended fuels, lubricants, fluids and
service parts conforming to specifications. Motorcraft
parts are designed and built to provide the best
performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR
VEHICLE
Be especially careful when inspecting or servicing
your vehicle.
²Do not work on a hot engine.
²When the engine is running, keep loose clothing,
jewelry or long hair away from moving parts.
²Do not work on a vehicle with the engine running
in an enclosed space, unless you are sure you
have enough ventilation.
²Keep all lit cigarettes, open flames and other lit
material away from the battery and all fuel related
parts.
If you disconnect the battery, the engine must
ªrelearnº its idle conditions before your vehicle will
drive properly, as explained in theBatterysection in
this chapter.
Working with the engine off
²Automatic transmission:
1. Set the parking brake and ensure the gearshift is
securely latched in P (Park).
Maintenance and care
147