FORD MUSTANG 2021 Owners Manual
Manufacturer: FORD, Model Year: 2021, Model line: MUSTANG, Model: FORD MUSTANG 2021Pages: 530, PDF Size: 10.22 MB
Page 331 of 530

How Temperature Affects Your Tire
Pressure
The tire pressure monitoring system
monitors tire pressure in each pneumatic
tire. While driving in a normal manner, a
typical passenger tire inflation pressure
could increase about 2
–4 psi (14– 28 kPa)
from a cold start situation. If the vehicle is
stationary overnight with the outside
temperature significantly lower than the
daytime temperature, the tire pressure
could decrease about
3 psi (21 kPa) for a
drop of 30°F (17°C) in ambient
temperature. This lower pressure value
could be detected by the tire pressure
monitoring system as being significantly
lower than the recommended inflation
pressure and activate the system warning
light for low tire pressure. If the low tire
pressure warning light is on, visually check
each tire to verify that no tire is flat. If one
or more tires are flat, repair as necessary.
Check the air pressure in the road tires. If
any tire is under-inflated, carefully drive
the vehicle to the nearest location where
air can be added to the tires. Inflate all the
tires to the recommended inflation
pressure.
CHANGING A ROAD WHEEL
(IF
EQUIPPED) WARNING:
If the tire pressure
monitor sensor becomes damaged it
may not function.
Note: You should only use tire sealants in
roadside emergencies as they may cause
damage to the tire pressure monitoring
system sensor. Note:
The tire pressure monitoring system
indicator light illuminates when the spare
tire is in use. To restore the full function of
the monitoring system, all road wheels
equipped with tire pressure monitoring
sensors must be mounted on the vehicle.
If you get a flat tire when 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.
Have a flat serviced by an authorized
dealer in order to prevent damage to the
tire pressure monitoring system sensors.
See
Tire Pressure Monitoring System
(page 324). Replace the spare tire with a
road tire as soon as possible. During
repairing or replacing of the flat tire, have
the authorized dealer inspect the tire
pressure monitoring system sensor for
damage.
Dissimilar Spare Wheel and Tire
Assembly Information WARNING:
Failure to follow these
guidelines could result in an increased
risk of loss of vehicle control, injury or
death.
If you have a dissimilar spare wheel and
tire, then it is intended for temporary use
only. This means that if you need to use it,
you should replace it as soon as possible
with a road wheel and tire assembly that
is the same size and type as the road tires
and wheels that were originally provided
by Ford. If the dissimilar spare tire or wheel
is damaged, it should be replaced rather
than repaired.
A dissimilar spare wheel and tire assembly
is defined as a spare wheel and tire
assembly that is different in brand, size or
appearance from the road tires and wheels
and can be one of three types:
328
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and Tires
Page 332 of 530

1.
T-type mini-spare: This spare tire
begins with the letter T for tire size and
may have Temporary Use Only molded in
the sidewall.
2. Full-size dissimilar spare with label
on wheel:
This spare tire has a label on
the wheel that states: THIS WHEEL AND
TIRE ASSEMBLY FOR TEMPORARY USE
ONLY.
When driving with one of the dissimilar
spare tires listed above, do not:
• Exceed
50 mph (80 km/h).
• Load the vehicle beyond maximum
vehicle load rating listed on the Safety
Compliance Label.
• Use snow chains on the end of the
vehicle with the dissimilar spare tire.
• Use more than one dissimilar spare tire
at a time.
• Use commercial car washing
equipment.
• Try to repair the dissimilar spare tire.
Use of one of the dissimilar spare tires
listed above at any one wheel location can
lead to impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs.
• Winter weather driving capability.
• Wet weather driving capability.
• All-wheel driving capability.
3. Full-size dissimilar spare without
label on wheel
When driving with the full-size dissimilar
spare wheel and tire assembly, do not:
• Exceed
75 mph (120 km/h).
• Use more than one dissimilar spare
wheel and tire assembly at a time. •
Use commercial car washing
equipment.
• Use snow chains on the end of the
vehicle with the dissimilar spare wheel
and tire assembly.
The usage of a full-size dissimilar spare
wheel and tire assembly can lead to
impairment of the following:
• Handling, stability and braking
performance.
• Comfort and noise.
• Ground clearance and parking at curbs.
• Winter weather driving capability.
• Wet weather driving capability.
• All-wheel driving capability.
When driving with the full-size dissimilar
spare wheel and tire assembly additional
caution should be given to:
• Driving vehicles with a load on the
cargo rack.
Drive cautiously when using a full-size
dissimilar spare wheel and tire assembly
and seek service as soon as possible.
Tire Change Procedure WARNING:
To help prevent your
vehicle from moving when changing a
wheel, shift the transmission into park
(P), set the parking brake and use an
appropriate block or wheel chock to
secure the wheel diagonally opposite to
the wheel being changed. For example,
when changing the front left wheel,
place an appropriate block or wheel
chock on the right rear wheel. WARNING:
Do not get under a
vehicle that is only supported by a
vehicle jack.
329
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and Tires
Page 333 of 530

WARNING: Do not attempt to
change a tire on the side of the vehicle
close to moving traffic. Pull far enough
off the road to avoid the danger of being
hit when operating the jack or changing
the wheel. WARNING:
Park your vehicle so
that you do not obstruct the flow of
traffic or place yourself in any danger and
set up a warning triangle. WARNING:
Always use the jack
provided as original equipment with your
vehicle. If using a jack other than the one
provided, make sure the jack capacity is
adequate for the vehicle weight,
including any vehicle cargo or
modifications. If you are unsure if the jack
capacity is adequate, contact the
authorized dealer. WARNING: Check that the vehicle
jack is not damaged or deformed and
the thread is lubricated and clean. WARNING:
The jack supplied with
this vehicle is only intended for changing
wheels. Do not use the vehicle jack other
than when you are changing a wheel in
an emergency. WARNING:
Use only the specified
jacking points. If you use other positions,
you may damage the body, steering,
suspension, engine, braking system or
the fuel lines. WARNING:
Never place anything
between the vehicle jack and your
vehicle. WARNING:
Never place anything
between the vehicle jack and the ground. WARNING:
Do not work on your
vehicle when the jack is the only support
as your vehicle could slip off the jack.
Failure to follow this instruction could
result in personal injury or death. WARNING: It is recommended that
the wheels of the vehicle be chocked,
and that no person should remain in a
vehicle that is being jacked. Note:
No maintenance or additional
lubrication of your jack is required over the
service life of your vehicle.
1. Park on a level surface, set the parking
brake and activate the hazard flashers.
2. Place the transmission in park (P) and
turn the engine off. For vehicles with a
manual transmission, place the
transmission in reverse (R) after the
engine is turned off. 330
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and TiresE166722 E175447
Page 334 of 530

3. Block both the front and rear of the
wheel diagonally opposite the flat tire. For example, if the left front tire is flat,
block the right rear wheel.4.
Remove the lug wrench, spare tire and
jack.
5. Remove the center ornament from the
wheel if required to access the lug nuts. 6. To remove the wrench from the jack,
turn the hex nut on the jack
counterclockwise. This lowers the jack
and loosen the mechanical lock.
7. Unfold the wrench for use. 331
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and TiresE174938 E175694 E181744
Page 335 of 530

8. Loosen each wheel lug nut one-half
turn counterclockwise but do not
remove them until the wheel is raised
off the ground. Note:
Jack at the specified locations to
avoid damage to the vehicle.
9. The vehicle jacking points are shown here, and can be identified by the
triangle markings on the vehicle. Details
are depicted on the warning label on
the jack. 10. Place the jack at the jacking point
next to the tire you are changing. Turn
the jack handle clockwise until the
wheel is completely off the ground. 11. Remove the lug nuts with the lug
wrench.
12. Replace the flat tire with the spare tire, making sure the valve stem is
facing outward. Reinstall lug nuts
until the wheel is snug against the
hub. Do not fully tighten the lug nuts
until the wheel has been lowered. If
you are using the temporary tire, the
lug nut washers do not appear to be
flush with the rim. This is normal only
when using the temporary spare tire.
13. Lower the wheel by turning the jack handle counterclockwise. 14.
Remove the jack and fully tighten the
lug nuts in the order shown. See
Technical Specifications (page
334).
15. To store the folded wrench on the jack, engage the bracket of the jack
base on the wrench feature as shown.
Swing the wrench upwards and
adjust the height of the jack until the
pin engages the hole. Tighten the hex
nut clockwise by hand until secure.
332
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and TiresE176084 E174939 12
3
4
5E306781
Page 336 of 530

16.
Put the flat tire, wheel ornament, jack
and lug wrench away. Make sure the
jack is fastened so it does not rattle
when you drive.
17. Unblock the wheel.
DRIVING AT HIGH SPEED WARNING: When driving at high
speeds, adjust the tire pressures for the
front and rear tires according to the
amount shown on the label located on
the drivers side B-pillar. Failure to follow
this instruction could result in serious
injury or death. Tire pressure - Speeds greater than 100
mph (160 km/h)
Your tires could require additional inflation
pressure for operation at speeds greater
than
100 mph (160 km/h). If this label is
present on your vehicle, you must adjust
the tire pressure accordingly.
333
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and TiresE176165 E184089
Page 337 of 530

TECHNICAL SPECIFICATIONS
Wheel Lug Nut Torque Specifications
WARNING: When you install a wheel, always remove any corrosion, dirt or foreign
materials present on the mounting surfaces of the wheel or the surface of the wheel
hub, brake drum or brake disc that contacts the wheel. Make sure to secure any fasteners
that attach the rotor to the hub so they do not interfere with the mounting surfaces of
the wheel. Installing wheels without correct metal-to-metal contact at the wheel
mounting surfaces can cause the wheel nuts to loosen and the wheel to come off while
your vehicle is in motion, resulting in loss of vehicle control, personal injury or death. lb.ft (Nm)
Bolt size
150 (204)
M14 X 1.5
1 Torque specifications are for nut and bolt threads free of dirt and rust. Use only Ford
recommended replacement fasteners.
Retighten the lug nuts to the specified torque within 100 mi (160 km) after any wheel
disturbance (such as tire rotation, changing a flat tire, wheel removal). Wheel pilot bore
A
Inspect the wheel pilot bore and
mounting surface prior to installation.
Remove any visible corrosion or loose
particles.
334
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Wheels and TiresE145950
Page 338 of 530

ENGINE SPECIFICATIONS - 2.3L ECOBOOST™
Specification
Measurement
138 in³ (2,261 cm³)
Engine Displacement.
1-3-4-2
Firing order.
Coil on plug
Ignition system.
0.028 in (0.7 mm) - 0.031 in (0.8 mm)
Spark plug gap.
9.5:1
Compression ratio - Base.
9.37:1
Compression ratio - High Output.
Drivebelt Routing ENGINE SPECIFICATIONS - 5.0L, MACH 1
Description
Item
90 degree V8.
Configuration.
3.66 in (93 mm)
bore x 3.65 in (92.7 mm)
stroke.
Bore x stroke.
307 in³ (5,038 cm³)
Displacement.
12.0:1
Compression ratio.
0.049 in (1.25 mm)
- 0.053 in (1.35 mm)
Spark plug gap.
480 hp (358 kW)
@ 7000 RPM
Horsepower.
335
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE170434
Page 339 of 530

Description
Item
420 lb.ft (569 Nm) @ 4600 RPM
Torque.
7500 RPM
Redline.
168 mph (270 km/h)
Top speed with manual transmission
without gurney flap.
155 mph (249 km/h)
Electronically limited.
Top speed with automatic transmission.
Dual overhead cams - roller fingerfollowers.
Valvetrain.
Coil on plug.
Ignition.
3.4 in (87 mm)
Throttle body.
Cast aluminum.
Pistons.
Forged steel cross-plane.
Crankshaft.
Forged steel.
Connecting rods.
Naturally aspirated cold air induction.
Induction.
High-flow dual exhaust with H-pipe andactive valve mufflers.
Exhaust system.
Drivebelt Routing 336
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE198573
Page 340 of 530

ENGINE SPECIFICATIONS - 5.0L
Specification
Measurement
307 in³ (5,038 cm³)
Engine displacement.
1-5-4-8-6-3-7-2
Firing order.
Coil on plug
Ignition system.
0.049 in (1.25 mm) - 0.053 in (1.35 mm)
Spark plug gap.
12.0:1
Compression ratio.
Drivebelt Routing BRAKE SYSTEM SPECIFICATIONS - MACH 1
Front
Specification
Description
14.96 in (380 mm)
Rotor diameter.
1.34 in (34 mm)
Rotor width.
81.18 in² (523.76 cm²)
Rotor swept area.
1.42 in (36 mm)
Caliper piston diameter.
337
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE198573