2021 FORD MUSTANG engine

The information contained in this publication was correct at the time of going to print. In the interest of
continuous development, we reserve the right to change specifications, design or equipment at any time
without notice or obligation. No part of this publication may be reproduced, transmitted, stored in a
retrieval system or translated into any language in any form by any means without our written permission.
Errors and omissions excepted.
© Ford Motor Company 2021
All rights reserved.
Part Number: 202010 20210217152127
California Proposition 65
WARNING: Operating, servicing and
maintaining a passenger vehicle or off-highway
motor vehicle can expose you to chemicals
including engine exhaust, carbon monoxide,
phthalates, and lead, which are known to the
State of California to cause cancer and birth
defects or other reproductive harm. To minimize
exposure, avoid breathing exhaust, do not idle the
engine except as necessary, service your vehicle
in a well-ventilated area and wear gloves or wash
your hands frequently when servicing your vehicle.
For more information go to
www.P65Warnings.ca.gov/passenger-vehicle. WARNING:
Battery posts, terminals and
related accessories contain lead and lead
compounds, chemicals known to the State of
California to cause cancer and reproductive harm.
Wash your hands after handling
.

Enabling Remote Start
..............................124
Remotely Starting the Engine .................
124
Extending the Remote Start Duration ........................................................................\
.
124
Remotely Stopping the Engine ...............
125
Remote Start Remote Control Indicators ........................................................................\
.
125
Remote Start Settings ...............................
125
Climate Control
Manual Climate Control ............................
127
Automatic Climate Control ......................
128
Hints on Controlling the Interior Climate - Vehicles With: Manual Temperature
Control .........................................................
130
Hints on Controlling the Interior Climate - Vehicles With: Automatic
Temperature Control ...............................
131
Heated Rear Window .................................
132
Heated Exterior Mirrors ..............................
132
Interior Air Quality
What Is the Cabin Air Filter ......................
133
Locating the Cabin Air Filter ....................
133
Replacing the Cabin Air Filter ..................
133
Seats
Sitting in the Correct Position .................
134
Head Restraints ............................................
134
Manual Seats ................................................
136
Power Seats ...................................................
137
Memory Function .........................................
137
Rear Seats ......................................................
139
Climate Controlled Seats .........................
139
Garage Door Opener
What Is the Garage Door Opener ...........
141
How Does the Garage Door Opener Work ........................................................................\
..
141
Garage Door Opener Precautions ..........
141
Garage Door Opener Limitations ...........
141Programming the Garage Door Opener
to Your Hand-Held Transmitter .........
142
Programming the Garage Door Opener to Your Garage Door Opener Motor
........................................................................\
.
142
Programming the Garage Door Opener to Your Gate Opener Motor .................
143
Clearing the Garage Door Opener .........
143
Reprogramming the Garage Door Opener ........................................................................\
.
144
Garage Door Opener Radio Frequencies ........................................................................\
.
144
Auxiliary Power Points
Auxiliary Power Points ...............................
145
Storage Compartments
Center Console .............................................
146
Glasses Holder .............................................
146
Starting and Stopping the Engine
General Information ...................................
147
Keyless Starting ............................................
147
Steering Wheel Lock ..................................
148
Starting a Gasoline Engine ......................
148
Engine Block Heater ...................................
150
Fuel and Refueling
Safety Precautions ......................................
152
Fuel Quality - Mach 1 ..................................
152
Fuel Quality ....................................................
153
Fuel Filler Funnel Location .......................
154
Running Out of Fuel ...................................
154
Refueling .........................................................
156
Fuel Consumption ......................................
158
Engine Emission Control
Emission Law ................................................
160
Catalytic Converter ......................................
161
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Transmission
Manual Transmission
................................164
Automatic Transmission ..........................
165
Technical Specifications - Mach 1 .........
168
Rear Axle
Limited Slip Differential ............................
170
Brakes
General Information .....................................
171
Hints on Driving With Anti-Lock Brakes ........................................................................\
..
171
Parking Brake .................................................
172
Hill Start Assist .............................................
173
Traction Control
Principle of Operation ................................
174
Using Traction Control ...............................
174
Stability Control
Principle of Operation ................................
175
Using Stability Control ...............................
176
Parking Aids
Principle of Operation ................................
178
Rear Parking Aid ...........................................
179
Rear View Camera ......................................
180
Cruise Control
What Is Cruise Control ..............................
184
Switching Cruise Control On and Off ........................................................................\
.
184
Setting the Cruise Control Speed .........
184
Canceling the Set Speed ..........................
185
Resuming the Set Speed ..........................
185
Cruise Control Indicators ..........................
185
Using Adaptive Cruise Control ...............
185
Driving Aids
Driver Alert ......................................................
191Lane Keeping System
................................
192
Blind Spot Information System .............
196
Cross Traffic Alert ........................................
198
Steering ...........................................................
201
Pre-Collision Assist ....................................
202
Drive Control - Mach 1 ..............................
206
Drive Control ................................................
209
Load Carrying
Load Limit .......................................................
213
Towing
Towing a Trailer - Mach 1 ...........................
218
Towing a Trailer ............................................
218
Recommended Towing Weights ...........
219
Essential Towing Checks .........................
220
Transporting the Vehicle - Mach 1 ........
222
Towing the Vehicle on Four Wheels .....
225
Convertible Top
Opening the Convertible Top .................
226
Closing the Convertible Top ....................
227
Driving Hints
Reduced Engine Performance ...............
229
Economical Driving ....................................
229
Cold Weather Precautions ......................
230
Breaking-In ....................................................
230
Driving Through Water ..............................
230
Floor Mats .......................................................
231
Roadside Emergencies
Roadside Assistance .................................
232
Hazard Flashers ...........................................
233
Fuel Shutoff ..................................................
233
Jump Starting the Vehicle .......................
234
Post-Crash Alert System .........................
236
Transporting the Vehicle ..........................
237
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Customer Assistance
Getting the Services You Need
..............238
In California (U.S. Only) ...........................
239
The Better Business Bureau (BBB) Auto Line Program (U.S. Only) ....................
240
Utilizing the Mediation/Arbitration Program (Canada Only) .......................
241
Getting Assistance Outside the U.S. and Canada ........................................................
241
Ordering Additional Owner's Literature ........................................................................\
243
Reporting Safety Defects (U.S. Only) ........................................................................\
243
Reporting Safety Defects (Canada Only) ........................................................................\
243
Fuses
Fuse Specification Chart .........................
245
Changing a Fuse .........................................
254
Maintenance
General Information ..................................
256
Opening and Closing the Hood .............
256
Under Hood Overview - 2.3L EcoBoost™ ........................................................................\
258
Under Hood Overview - 5.0L .................
259
Under Hood Overview - 5.0L, Mach 1 .......................................................................
260
Engine Oil Dipstick ......................................
261
Engine Oil Check ..........................................
261
Oil Change Indicator Reset ......................
261
Changing the Engine Air Filter - 5.0L, Mach 1 .........................................................
262
Changing the Engine Air Filter - 2.3L EcoBoost™/5.0L ....................................
263
Engine Coolant Check ..............................
264
Manual Transmission Fluid Check - 6-Speed Manual Transmission – 3160
........................................................................\
268
Manual Transmission Fluid Check - 6-Speed Manual Transmission – MT82
........................................................................\
268 Automatic Transmission Fluid Check
........................................................................\
269
Brake Fluid Check .......................................
269
Clutch Fluid Check - Manual Transmission ............................................
270
Power Steering Fluid Check ....................
270
Changing the 12V Battery ........................
270
Adjusting the Headlamps ........................
272
Washer Fluid Check ...................................
274
Fuel Filter ........................................................
274
Checking the Wiper Blades .....................
274
Changing the Wiper Blades ....................
274
Changing a Bulb ..........................................
275
Track Use
Track Use - Mach 1 ......................................
276
Track Use .......................................................
283
Vehicle Care
General Information ..................................
289
General Information - GT500/Mach 1 ........................................................................\
289
Cleaning Products .....................................
290
Cleaning the Exterior - Mach 1 ................
291
Cleaning the Exterior ..................................
291
Waxing ............................................................
293
Cleaning the Engine - Mach 1 .................
293
Cleaning the Engine ...................................
293
Cleaning the Windows and Wiper Blades ........................................................................\
294
Cleaning the Interior ..................................
294
Cleaning the Instrument Panel and Instrument Cluster Lens ......................
295
Cleaning Leather Seats ............................
295
Repairing Minor Paint Damage .............
296
Cleaning the Wheels .................................
296
Vehicle Storage ...........................................
296
Cleaning the Convertible Top ................
298
Body Styling Kits ........................................
298
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Wheels and Tires
General Information
..................................299
Tire Sealant and Inflator Kit ...................
299
Tire Care .........................................................
305
Using Summer Tires ..................................
320
Using Winter Tires ......................................
323
Using Snow Chains ....................................
323
Tire Pressure Monitoring System ..........
324
Changing a Road Wheel ..........................
328
Driving at High Speed ................................
333
Technical Specifications ..........................
334
Capacities and Specifications
Engine Specifications - 2.3L EcoBoost™ ........................................................................\
335
Engine Specifications - 5.0L, Mach 1 ........................................................................\
335
Engine Specifications - 5.0L ...................
337
Brake System Specifications - Mach 1 ........................................................................\
337
Suspension Specifications - Mach 1 .....
339
Motorcraft Parts - 2.3L EcoBoost™ .....
340
Motorcraft Parts - 5.0L ..............................
341
Motorcraft Parts - 5.0L, Bullitt/Mach 1 ........................................................................\
342
Vehicle Identification Number ...............
343
Capacities and Specifications - 2.3L EcoBoost™ ...............................................
343
Capacities and Specifications - 5.0L ........................................................................\
.
351
Bulb Specification Chart .........................
359
Connected Vehicle
What Is a Connected Vehicle ................
360
Connected Vehicle Requirements .......
360
Connected Vehicle Limitations .............
360
Connecting the Vehicle to a Mobile Network .....................................................
360
Connecting the Vehicle to a Wi-Fi Network .....................................................
360Connected Vehicle – Troubleshooting -
Vehicles With: Modem ..........................
361
Connected Vehicle – Troubleshooting - Vehicles With: SYNC 3 ..........................
362
Vehicle Wi-Fi Hotspot
Creating a Vehicle Wi-Fi Hotspot .........
364
Changing the Vehicle Wi-Fi Hotspot Name or Password ................................
364
Audio System
General Information ..................................
365
Audio Unit - Vehicles With: 4.2 Inch Information and Entertainment Display
Screen .........................................................
365
Audio Unit - Vehicles With: 8 Inch Information and Entertainment Display
Screen .........................................................
367
Digital Radio .................................................
369
Satellite Radio ...............................................
371
USB Port .........................................................
374
SYNC™
General Information ...................................
375
Using Voice Recognition ..........................
376
Using SYNC™ With Your Phone ...........
378
SYNC™ Applications and Services ......
379
Using SYNC™ With Your Media Player ........................................................................\
382
SYNC™ Troubleshooting ........................
383
SYNC™ 3
General Information ..................................
392
Using Voice Recognition ..........................
394
Entertainment ..............................................
401
Climate .............................................................
411
Phone ...............................................................
413
Navigation ......................................................
415
Apps ................................................................
420
Settings ..........................................................
423
SYNC™ 3 Troubleshooting .....................
425
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Ford
’s first use of the Mach 1 name came
on a concept vehicle – a wheel-less
single-seat pod tethered to an arm that
allowed it to glide on a cushion of air
around a circular track set up at the Ford
Rotunda in the spring of 1959. Ford ’s
Levacar Mach 1 Concept was an
air-propulsion flying car of sorts,
suggesting that vehicles in the future could
use ducted air to levitate and maneuver at
high speed while off the ground.
The Mach 1 name was resurrected in 1966
for another Ford concept car that was
meant to preview some aerodynamic and
styling advances for a futuristic
high-performance Mustang fastback. The
two-seat Mustang Mach 1 Concept that
was shown at the 1967 Detroit Auto Show
featured a slanted areo-grille, severely
chopped roof, large air scoops and steeply
slanted rear glass as part of a full
hatchback -- a design feature that
wouldn ’t appear in production until 1974.
Ford updated the Mustang Mach 1 Concept
with a new front-end treatment in time for
touring the auto show circuit in 1968 to
herald the popular pony car ’s third styling
refresh due the following year.
By the time 1969 had rolled around, the
again restyled and upsized Ford Mustang
was facing a series of new challenges, both
in the muscle car wars taking place out in
the marketplace by an onslaught of
powerful new competitors, and inside of
Ford Motor Company, where a new, Steed
for Every Need marketing approach
expanded pony car offerings to five distinct
models with at least 10 different
powertrain combinations. Ford's Mustang
had galloped into its fifth model year
refreshed with unmistakable good looks,
thanks to its 2+2 fastback now called the
SportsRoof, featuring upper rear-quarters
cut with forward-facing scoops and a
dramatic tail that incorporated an upswept
rear edge. Even though the GT equipment group
introduced in 1965 was again available for
a final year, it was overshadowed for 1969,
as the hot ticket was an all-new Mach 1
model – wearing the name borrowed from
those radical recent Mustang show cars.
The new Mustang Mach 1 came standard
with the 351, a desirable mix of appearance
enhancements, plus special reflective
bodyside stripes and an uplevel interior.
Later, a flat-black rear decklid spoiler and
a set of rear window louvers were added
as dress-up options. To many enthusiasts
today, a ’
69 Mach 1 equipped with an
optional new-for-’ 69 428 Cobra Jet V-8 is
the first true Mustang muscle car and a
top-shelf collectible.
Other than yet another front-end
freshening (including going back to just
two headlamps and adding non-functional
outboard air inlets) and the elimination of
the side scoops, the biggest change to the
1970 Mustang lineup was a move to the
Cleveland-design 351 V-8 over the Windsor
351 version from the year before. The GT
model was dropped in the face of the
Mach 1's popularity, but the 428CJ engine
option was again available across the
board. By 1971, Ford ’s famed
first-generation pony car had already
undergone its fourth major facelift, growing
in every dimension to accommodate even
bigger engines. The ’ 71 Mustang featured
an extended nose with a body that was
wider, close to a foot longer and around
600 pounds heavier than the original. The
SportsRoof-only Mach 1 model was now
Ford's bread-and-butter enthusiast model,
especially with the optional new big-block
429 Cobra Jet engine, good for 370
horsepower.
There were only minor changes on tap for
Mustang in 1972 and ’ 73, most of them
dealing with the options list and the
continuing emasculation of engine
offerings and horsepower in the face of
emissions and fuel economy regulations,
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Introduction

as well as the elimination of a convertible.
The automotive performance world soon
came to a screeching halt in the wake of
an oil embargo and resulting gas
shortages, forcing most Americans to
abandon their muscle cars and
V-8-powered rides in favor of smaller,
more fuel-efficient vehicles. Ford saw the
market shift as the perfect time to return
its pony car to its roots – a compact,
affordable, sporty car whose styling and
image captured the spirit and imagination
of the American public.
When the new-from-the-ground-up,
second-generation Mustang II was
launched for the 1974 model year, it was
the first Mustang equipped with a
four-cylinder engine. An all-new 2.3-liter
I-4 produced around 90 horses as the
standard powerplant for the downsized
Mustang II - yet performance was roughly
equivalent to the previous Mustang’
s big
inline six. The Mustang II was available as
a hardtop two-door notchback coupe or a
three-door hatchback-style fastback.
Buyers had a choice of either I-4 or V-6
power, as well as a three-speed automatic
or four-speed manual transmissions. To
keep Mustang’ s performance image going
even in a world where consumers favored
fuel economy over horsepower, an
enthusiast-focused Mustang II Mach 1
model was offered as a three-door
hatchback-style fastback, replete with
bucket seats.
There ’s little question that the saving grace
for the Mustang II’ s performance
reputation came when Ford finally realized
it needed to put the 302 V-8 back onto the
Mustang option list for 1975-78. The V-8
was available in any model, but first only
mated to a three-speed automatic
transmission, as a four-speed manual was
delayed a full year until a suitable clutch
could be tooled up. The two-barrel 302
shoehorned into the Mustang II got
catalytic converters to help meet 1976 ’s tighter emissions standards, and saw an
increase to 139 horsepower – nearly equal
to the ’
73’s standard V-8 power level. The
Mach 1’ s optional Competition Suspension
package offered stiffer springs, adjustable
shock absorbers and fatter front and rear
stabilizer bars to improve handling, and
kept it a popular enthusiast choice over all
five years of Mustang II's production. By
the dawn of the third-generation Mustang,
the Mach name would not return again to
the Mustang line until some 25 years later.
After the 1979-93 Fox Body Mustang years
had come and gone with the reintroduction
of a GT model, new sheet metal on a
revamped SN-95 platform helped to
rekindle consumer interest in a
fourth-generation Ford Mustang.
Enthusiasts lavished their attention upon
the 1993-1999 Mustang Cobra
performance model developed by the Ford
Special Vehicle Team skunkworks group,
while Ford engineers looked to specialty
models to fill the mid-market slot between
the standard Mustang GT and the
upmarket Cobra.
After the success of the 2001 Bullitt, a
new-for-2003 Mach 1 was launched to
offer fans some design cues from its '69
namesake, including a blackout hood,
black front air-dam extension and rear
decklid spoiler – even bodyside scoops. To
match its aggressive look and hardware
upgrades, the '03 Mach 1 was powered by
a 305-horsepower, 4.6L DOHC modular
V-8. Unlike the SVT Cobra, the Mach 1
offered an automatic transmission option
in lieu of the manual, and consequently
drew a new group of enthusiast buyers into
the Ford fold. The strong customer
response prompted another year of Mach
1 production for 2004, the Mustang's final
year on the fourth-gen platform.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Introduction

Thanks to a popular mix of appearance,
features and power, the 1969-73 Mach 1's
proved to be everyman's muscle car, and
have earned a respected place in Mustang
performance lore. Beyond those classic
years, the Mach 1 carried over for all five
years of the often overlooked 1974-78's
before a hiatus that ended with the
modern and muscular 2003-04's. Mach
1’
s return to the Mustang lineup for 2021
will add a new chapter on modern-day
muscle for this beloved model, and will
cement its rightful place near the very top
of Mustang performance history.
John M. Clor
Enthusiast Communications Manager /
FORD PERFORMANCE
SYMBOLS GLOSSARY
These are some of the symbols you may
see on your vehicle. Air conditioning system
Air conditioning system lubricant
type
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Brake fluid - non petroleum
based Brake system
Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control
Do not open when hot
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
13
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing IntroductionE162384 E231157 E270480 E139223 E141128 E71340