fuel pressure FORD MUSTANG 2003 4.G Owners Manual

Never remove the coolant reservoir cap
while the engine is running or hot. Steam
and scalding liquid from a hot cooling system can
burn you badly.
This gauge indicates the temperature of the engine
coolant, not the coolant level. If the coolant is not at
its proper level the gauge indication will not be
accurate.
Engine oil pressure gauge
Indicates engine oil
pressure. At normal
operating temperature,
the needle will be in
the normal range (the area between the“L”and
“H”); if the needle goes below the normal range,
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 the
Maintenance and specificationschapter). If the oil
level is correct, have your vehicle checked at your
dealership or by a qualified technician.
Battery voltage gauge
Indicates battery
voltage. If the pointer
moves and stays
outside the normal
operating range, have the vehicle’s electrical system
checked as soon as possible.
Fuel gauge
Displays approximately
how much fuel is in the
fuel tank. The fuel
gauge may vary slightly
when the vehicle is in motion or on a grade.
LH
LH
F
Instrument Cluster
16

To release the parking
brake, the brake handle
may need to be pulled
up slightly to release
pressure before
pushing in the button.
Push the button on the
end of the parking
brake handle and push the handle down as far as
possible. Driving with the parking brake applied will
cause the brakes to wear out quickly and reduce fuel
economy.
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.
The ABS operates by
detecting the onset of
wheel lockup during
brake applications and
compensates for this
tendency. The 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 with
loss of front braking traction.
Driving
140

PAINT CHIPS
Your dealer has touch-up paint and sprays to match
your vehicle’s color. Take your color code (printed
on a sticker in the driver’s door jam) to your dealer
to ensure you get the correct color.
•Remove particles such as bird droppings, tree sap,
insect deposits, tar spots, road salt and industrial
fallout before repairing paint chips.
•Always read the instructions before using the
products.
ALUMINUM WHEELS AND COVERS
Aluminum wheel rims or covers are coated with a
clearcoat paint finish. In order to maintain their
shine:
•Clean with Motorcraft Wheel and Tire Cleaner
(ZC-37–A), which is available from your dealer.
•Never apply any cleaning chemical to hot or warm
wheel rims or covers.
•Some automatic car washes may cause damage to
the finish on your wheel rims or covers.
Chemical-strength cleaners, or cleaning chemicals,
in combination with brush agitation to remove
brake dust and dirt, could wear away the
clearcoat finish over time.
•Do not use hydrofluoric acid-based or high
caustic-based wheel cleaners, steel wool, fuels or
strong household detergent.
•To remove tar and grease, use Ford Extra
Strength Tar and Road Oil Removal
(B7A-19520–AA), available from your dealer.
ENGINE
Engines are more efficient when they are clean
because grease and dirt buildup keep the engine
warmer than normal. When washing:
•Take care when using a power washer to clean
the engine. The high-pressure fluid could
penetrate the sealed parts and cause damage.
Cleaning
188

Batteries normally produce explosive gases
which can cause personal injury. Therefore,
do not allow flames, sparks or lighted substances
to come near the battery. When working near the
battery, always shield your face and protect your
eyes. Always provide proper ventilation.
When lifting a plastic-cased battery,
excessive pressure on the end walls could
cause acid to flow through the vent caps, resulting
in personal injury and/or damage to the vehicle or
battery. Lift the battery with a battery carrier or
with your hands on opposite corners.
Keep batteries out of reach of children.
Batteries contain sulfuric acid. Avoid contact
with skin, eyes or clothing. Shield your eyes when
working near the battery to protect against
possible splashing of acid solution. In case of acid
contact with skin or eyes, flush immediately with
water for a minimum of 15 minutes and get
prompt medical attention. If acid is swallowed, call
a physician immediately.
Battery posts, terminals and related
accessories contain lead and lead
compounds.Wash hands after handling.
Because your vehicle’s engine is electronically
controlled by a computer, some control conditions
are maintained by power from the battery. When the
battery is disconnected or a new battery is installed,
the engine must relearn its idle and fuel trim
strategy for optimum driveability and performance.
To begin this process:
1. With the vehicle at a complete stop, set the
parking brake.
2. Put the gearshift in P (Park) (automatic
transmission) or the neutral position (manual
transmission), turn off all accessories and start the
engine.
Maintenance and Specifications
204

WHAT YOU SHOULD KNOW ABOUT
AUTOMOTIVE FUELS
Important safety precautions
Do not overfill the fuel tank. The pressure in
an overfilled tank may cause leakage and
lead to fuel spray and fire.
The fuel system may be under pressure. If
the fuel filler cap is venting vapor or if you
hear a hissing sound, wait until it stops before
completely removing the fuel filler cap. Otherwise,
fuel may spray out and injure you or others.
If you do not use the proper fuel filler cap,
excessive pressure or vacuum in the fuel
tank may damage the fuel system or cause the fuel
cap to disengage in a collision, which may result in
possible personal injury.
Automotive fuels can cause serious injury or
death if misused or mishandled.
Gasoline may contain benzene, which is a
cancer-causing agent.
Observe the following guidelines when handling
automotive fuel:
•Extinguish all
smoking materials
and any open flames
before fueling your
vehicle.
•Always turn off the vehicle before fueling.
•Automotive fuels can be harmful or fatal if
swallowed. Fuel such as gasoline is highly toxic
and if swallowed can cause death or permanent
Maintenance and Specifications
214

The fuel system may be under pressure. If
the fuel filler cap is venting vapor or if you
hear a hissing sound, wait until it stops before
completely removing the fuel filler cap. Otherwise,
fuel may spray out and injure you or others.
If you do not use the proper fuel filler cap,
excessive pressure or vacuum in the fuel
tank may damage the fuel system or cause the fuel
cap to disengage in a collision, which may result in
possible personal injury.
Choosing the right fuel
Use only UNLEADED FUEL. The use of leaded fuel
is prohibited by law and could damage your vehicle.
Do not use fuel containing methanol. It can damage
critical fuel system components.
Your vehicle was not designed to use fuel or fuel
additives with metallic compounds, including
manganese-based compounds containing MMT.
Repairs to correct the effects of using a fuel for
which your vehicle was not designed may not be
covered by your warranty.
Octane recommendations
Your vehicle is
designed to use
“Regular”unleaded
gasoline with pump
(R+M)/2 octane rating of 87. We do not recommend
the use of gasolines labeled as“Regular”that are
sold with octane ratings of 86 or lower in high
altitude areas.
Do not be concerned if your engine sometimes
knocks lightly. However, if it knocks heavily under
most driving conditions while you are using fuel with
the recommended octane rating, see your dealer or
a qualified service technician to prevent any engine
damage.
87(R+M)/2 METHOD
Maintenance and Specifications
217

•Driving on flat terrain offers improved fuel
economy as compared to driving on hilly terrain.
•Transmissions give their best fuel economy when
operated in the top cruise gear and with steady
pressure on the gas pedal.
•Close windows for high speed driving.
EPA window sticker
Every new vehicle should have the EPA window
sticker. Contact your dealer if the window sticker is
not supplied with your vehicle. The EPA window
sticker should be your guide for the fuel economy
comparisons with other vehicles.
It is important to note the box in the lower left
corner of the window sticker. These numbers
represent the Range of L/100 km (MPG) expected
on the vehicle under optimum conditions. Your fuel
economy may vary depending upon the method of
operation and conditions.
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:
•Use only the specified fuel listed.
•Avoid running out of fuel.
•Do not turn off the ignition while your vehicle is
moving, especially at high speeds.
•Have the items listed in your scheduled
maintenance guide performed according to the
specified schedule.
The scheduled maintenance items listed in the
scheduled maintenance guide are 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
Maintenance and Specifications
223

running out
of
fuel ......................... 218
safety information
relating to
automotive fuels ... 214
Fuses ........................ 160
G
Gas cap
(see Fuel cap) ... 12, 216
Gas mileage
(see
Fuel economy) ........ 219
Gauges ....................... 15
battery voltage
gauge ....................... 16
engine coolant
temperature
gauge ....................... 15
engine oil pressure
gauge ....................... 16
fuel gauge ................ 16
odometer ................. 17
speedometer ........... 17
tachometer .............. 17
trip odometer .......... 18
GAWR (Gross Axle
Weight Rating) ........ 154
definition ............... 154
driving with a
heavy load ............. 154
location .................. 154
GVWR (Gross Vehicle
Weight Rating) ........ 154
calculating ............. 154
definition ............... 154
driving with a
heavy load ............. 154
location .................. 154H
Hazard flashers ....... 158
Head restraints ......... 99
Headlamps ................. 67
aiming ................ 68–69
bulb specifications .. 71
daytime running
lights ........................ 67
flash to pass ............ 68
high beam ......... 10, 68
replacing bulbs ....... 72
turning on and off .. 67
warning chime ........ 15
Heating
heating and air
conditioning
system ..................... 63
Hood ........................ 196
I
Ignition ............. 133, 242
removing the key .. 153
Infant seats (see
Safety seats) ........... 123
Inspection/maintenance
(I/M) testing ............ 224
Instrument panel
cleaning ................. 190
cluster ...................... 10
lighting up panel
and interior ............. 68
J
Jack .......................... 165
positioning ............. 165
storage ................... 165
Index
251