2021 FORD MUSTANG engine

Follow your community's regulations and
standards for recycling and disposing of
automotive fluids.
Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60%
provides improved freeze point
protection.
• Coolant concentrations above 60%
decrease the overheat protection
characteristics of the coolant and may
cause engine damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• A coolant concentration of 40%
provides improved overheat protection.
• Coolant concentrations below 40%
decrease the overheat and corrosion
protection characteristics of the
coolant and may cause engine
damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. Add
prediluted coolant approved to the correct
specification. See Capacities and
Specifications (page 335). Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
How Fail-Safe Cooling Works If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone:
A warning lamp illuminates and
a message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating
cylinder operation. Each disabled cylinder
acts as an air pump and cools the engine.
When this occurs, your vehicle still
operates, however:
• Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
When Fail-Safe Mode Is Activated WARNING: Fail-safe mode is for
use during emergencies only. Operate
your vehicle in fail-safe mode only as
long as necessary to bring your vehicle
to rest in a safe location and seek
immediate repairs. When in fail-safe
mode, your vehicle will have limited
power, will not be able to maintain
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high-speed operation, and may
completely shut down without warning,
potentially losing engine power, power
steering assist, and power brake assist,
which may increase the possibility of a
crash resulting in serious injury.
WARNING: Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury.
Your vehicle has limited engine power
when in the fail-safe mode, drive your
vehicle with caution. Your vehicle does not
maintain high-speed operation and the
engine may operate poorly.
Remember that the engine is capable of
automatically shutting down to prevent
engine damage. In this situation:
1. Pull off the road as soon as safely possible and switch the engine off.
2. If you are a member of a roadside assistance program, we recommend
that you contact your roadside
assistance service provider.
3. If this is not possible, wait for a short period of time for the engine to cool.
4. Check the coolant level. If the coolant level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you can re-start the engine. Have your
vehicle checked as soon as possible to
minimize engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage. Engine Coolant Temperature
Management
(If Equipped) WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the
vehicle may not be able to accelerate
with full power until the coolant
temperature reduces.
If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long
or steep grade in high ambient
temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
You may notice a reduction in vehicle
speed caused by reduced engine power in
order to manage the engine coolant
temperature. Your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction depends on
vehicle loading, grade and ambient
temperature. If this occurs, there is no
need to stop your vehicle. You can
continue to drive.
The air conditioning may automatically
turn on and off during severe operating
conditions to protect the engine from
overheating. When the coolant
temperature decreases to the normal
operating temperature, the air conditioning
turns on.
If the coolant temperature gauge moves
fully into the red zone, or if the coolant
temperature warning or service engine
soon messages appear in your information
display, do the following:
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1. Stop your vehicle as soon as it is safe
to do so. Fully apply the parking brake,
shift into park (P) or neutral (N).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. If the
temperature does not drop after
several minutes, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue.
MANUAL TRANSMISSION
FLUID CHECK - 6-SPEED
MANUAL TRANSMISSION –
3160
Note: Make sure the vehicle is on a level
surface.
1. Clean the filler plug. 2. Remove the filler plug.
3.
Start the engine and allow it to idle for
two minutes with the clutch engaged.
4. Add fluid through the filler hole.
5. The correct fluid fill level is 0.0–0.1 in
(0– 3 mm) below the bottom edge of
the filler hole.
6. Install the filler plug.
7. Tighten the filler plug until you feel a strong resistance.
Only use fluid that meets our
specifications. See
Capacities and
Specifications (page 335).
MANUAL TRANSMISSION
FLUID CHECK - 6-SPEED
MANUAL TRANSMISSION –
MT82
1. Clean the filler plug. The filler plug is on the right-hand side of the
transmission. 2. Remove the filler plug.
3. The correct fluid fill level is
0.0–0.1 in
(0– 3 mm) below the bottom edge of
the filler hole.
4. Add fluid through the filler hole.
5. Install the filler plug.
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WARNING: This vehicle may have
more than one battery. Removing the
battery cables from only one battery
does not disconnect your vehicle
electrical system. Make sure you
disconnect the battery cables from all
batteries when disconnecting power.
Failure to do so may cause serious
personal injury or property damage. WARNING:
For vehicles with
Auto-Start-Stop the battery requirement
is different. You must replace the battery
with one of exactly the same
specification.
The battery is in the engine compartment.
See
Under Hood Overview (page 258).
Your vehicle has a maintenance-free
battery. It does not require additional
water during service.
If the vehicle battery has a cover and vent
hose, make sure you correctly install it after
cleaning or replacing the battery.
For longer, trouble-free operation, keep the
top of the battery clean and dry and the
battery cables tightly fastened to the
battery terminals. If any corrosion is
present on the battery or terminals, remove
the cables from the terminals and clean
with a wire brush. You can neutralize the
acid with a solution of baking soda and
water.
We recommend that you disconnect the
negative battery cable terminal from the
battery if you plan to store your vehicle for
an extended period.
Note: If you only disconnect the negative
battery cable terminal, make sure it is
isolated or placed away from the battery
terminal to avoid unintended connection or
arcing. If you replace the battery make sure it
matches the electrical requirements of
your vehicle.
If you disconnect or replace the battery
and your vehicle has an automatic
transmission, it must relearn its adaptive
strategy. Because of this, the transmission
may shift firmly when first driven. This is
normal operation while the transmission
fully updates its operation to optimum
shift feel.
Battery Management System
(If
Equipped)
The battery management system monitors
battery conditions and takes actions to
extend battery life. If excessive battery
drain is detected, the system temporarily
disables some electrical systems to
protect the battery.
Systems included are:
• Heated rear window.
• Heated seats.
• Climate control.
• Heated steering wheel.
• Audio unit.
• Navigation system.
A message may appear in the information
displays to alert you that battery
protection actions are active. These
messages are only for notification that an
action is taking place, and not intended to
indicate an electrical problem or that the
battery requires replacement.
After battery replacement, or in some
cases after charging the battery with an
external charger, the battery management
system requires eight hours of vehicle sleep
time to relearn the battery state of charge.
During this time your vehicle must remain
fully locked with the ignition switched off.
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Note:
Prior to relearning the battery state
of charge, the battery management system
may temporarily disable some electrical
systems.
Electrical Accessory Installation
To make sure the battery management
system works correctly, do not connect an
electrical device ground connection
directly to the battery negative post. This
can cause inaccurate measurements of
the battery condition and potential
incorrect system operation.
Note: If you add electrical accessories or
components to the vehicle, it may adversely
affect battery performance and durability.
This may also affect the performance of
other electrical systems in the vehicle.
Remove and Reinstall the Battery
To disconnect or remove the battery, do
the following:
1. Apply the parking brake and switch the
ignition off.
2. Switch all electrical equipment off, for
example lights and radio.
3. Wait a minimum of two minutes before
disconnecting the battery.
Note: The engine management system has
a power hold function and remains powered
for a period of time after you switch the
ignition off. This is to allow diagnostic and
adaptive tables to be stored. Disconnecting
the battery without waiting can cause
damage not covered by the vehicle
Warranty.
4. Disconnect the negative battery cable terminal.
5. Disconnect the positive battery cable terminal.
6. Remove the battery securing clamp.
7. Remove the battery. 8. To install, reverse the removal
procedure.
Note: Before reconnecting the battery,
make sure the ignition remains switched off.
Note: Make sure the battery cable terminals
are fully tightened.
If you disconnect or replace the vehicle
battery, you must reset the following
features:
• Window bounce-back. See Power
Windows (page 86).
• Clock Settings.
• Pre-set radio stations.
Battery Disposal Make sure that you dispose of
old batteries in an
environmentally friendly way.
Seek advice from your local authority
about recycling old batteries.
ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
The headlamps on your vehicle are
properly aimed at the assembly plant. If
your vehicle has been in an accident, have
the alignment of your headlamps checked
by an authorized dealer.
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TRACK USE - MACH 1
Operating at High Speeds and
Track Days
Your vehicle is capable of sustained high
speeds and track day driving.
Before operating your vehicle at high
speeds:
•
Verify your tires have the correct
pressures.
• Inspect wheels and tires for wear and
damage. Replace any damaged wheels
and tires.
• Check and set lug nut torque. See
Technical Specifications (page 334).
• Verify fluid levels for oil, coolant, brake
and hydraulic fluid. See
Capacities
and Specifications (page 335).
• Change the engine oil and replace the
engine oil filter prior to use on the track.
Change the engine oil and filter again
after every four hours of track time.
Maintain the engine oil level at or near
the max mark on the engine oil dipstick.
See
Engine Oil Check (page 261).
• Replace the brake fluid with fresh
Motorcraft/Ford DOT 4 LV High
Performance Brake Fluid or other DOT
compliant fluid with a dry boiling point
greater than
500°F (260°C) from a
sealed container. Do not use silicone
or DOT 5 brake fluids. •
If you are operating your Mach 1 on a
drag strip, use drag strip selectable
drive mode in addition to using line lock
and launch control to provide a specific
set-up tuned for the quickest straight
line elapsed times.
• If you are operating your Mach 1 on a
road course, use sport or track
selectable drive modes to provide a
specific set-up tuned for optimal shift
and suspension set-up that is tuned
towards handling prowess on closed
course surfaces.
After operating your vehicle at high speeds
or track day driving, do the following:
• Set the tire pressure to the proper
specification.
• Check and set the lug nut torque. See
Technical Specifications
(page 334).
• Check all fluid levels.
• Refer to the track maintenance interval
chart. See
Normal Scheduled
Maintenance (page 444).
• Check the front and rear wheel
bearings for abnormal wear.
• Inspect brake caliper dust boots for
abnormal wear.
Track Apps WARNING:
Track Apps™
is for
track use only. Remember that even
advanced technology cannot defy the
laws of physics. It is always possible to
lose control of a vehicle due to
inappropriate driver input for the
conditions. Aggressive driving on any
road condition can cause you to lose
control of your vehicle increasing the risk
of personal injury or property damage.
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This information display driven feature
provides a suite of menu options to record
and optimize your track performances.
See General Information (page 99).
Note: Track Apps are for track use only. Do
not use them under any other driving
conditions.
Note: You cannot view or clear your results
unless your vehicle is at a complete stop
with the right arrow on the display menu
inactive. If your vehicle does not reach
100 mph (160 km/h)
during the track run,
your display may not show your selected
interval's results.
Note: The pre-collision assist system turns
off when using Track Apps or when you
switch off your stability control system.
Acceleration Timer
Displays your vehicle's rate of acceleration
for a given speed or distance range.
Accelerometer
Displays your vehicle's rate of acceleration
or deceleration. A dot moves toward the
area of acceleration or deceleration.
LEFT Acceleration or Deceleration
When accelerating or decelerating left, the
dot moves to the right on the
accelerometer.
RIGHT Acceleration or Deceleration
When accelerating or decelerating right,
the dot moves to the left on the
accelerometer.
Brake Performance
Displays your vehicle's rate of deceleration
for a given speed range. Exhaust Mode
Gives the driver the ability to choose the
vehicle's exhaust mode.
Note:
The Track Exhaust Mode setting is
only for use at tracks and not for use on
public roadways. Use of this setting results
in increased exterior noise, which may not
meet state and local laws and regulations.
It is the obligation of the driver to operate
the vehicle in a manner that complies with
state and local requirements. Only use the
Track Exhaust Mode setting at a
competition track or an off-road course
where elevated exterior vehicle noise is
acceptable.
Lap Timer
Gives you the ability to record lap times at
three separate tracks.
Launch Control
(If Equipped)
Maximizes your vehicle's traction from a
standing start.
Follow these steps to use launch control:
1. Bring your vehicle to a complete stop.
2. Make sure launch control is enabled. The indicator illuminates in the
information display when launch
control is enabled.
See Warning
Lamps and Indicators (page 94).
3. Fully press the clutch pedal.
4. Shift the transmission into 1st gear.
5. Fully depress the accelerator pedal and
allow the engine RPM to stabilize.
6. Release the clutch pedal.
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Line Lock
Line lock is a feature intended for use at
tracks only and should not be used on
public roadways. Use of this feature may
result in significantly increased rear tire
wear. It is intended to condition the rear
tires to maximize traction prior to track use.
Line lock maintains brake force at the front
wheels, allowing the rear wheels to spin
with minimal vehicle movement.
This feature is located in the Track Apps
menu. Make selections through the 5-way
information display control and OK button
located on the steering wheel.
Using Line Lock
There are three line lock stages:
•
Initiated.
• Engaged.
• Off.
Initiating Line Lock
The initiation stage verifies that the vehicle
is ready for line lock function, and confirms
driver intent. Follow the prompts in the
information display to initiate line lock.
The following conditions must be met to
initialize line lock:
• The vehicle is on a level surface.
• The engine is running.
• The vehicle is traveling less than
25 mph (40 km/h).
• Selectable drive mode is not in wet
mode (if equipped).
• There are no electronic stability control
faults. If you want to cancel line lock once it is
initialized, press the left information
display control. Once initiated, line lock is
prepared for activation and remains
initiated up to 25 mph (40 km/h). If vehicle
speed exceeds 25 mph (40 km/h), line lock
automatically cancels.
Engaging Line Lock
Follow the prompts in the information
display to engage line lock after it is
initialized. To engage, firmly apply the
brakes. Then press the OK button. Once
engaged, release the brake pedal. The
front brakes remain applied and the rear
brakes release. At this point, the
engagement timer is initiated and shown
on the driver information display.
The following conditions must be met to
engage line lock:
•
The vehicle is on a level surface.
• The engine is running.
• The vehicle is stopped.
• The parking brake is not applied.
• The driver door is closed.
• The transmission is in a forward gear.
• Selectable drive mode is not in wet
mode (if equipped).
• There are no electronic stability control
faults.
• The steering wheel must be in the
straight ahead position.
Releasing Line Lock
While line lock is engaged, you can exit
(release) the feature using the OK button.
When you press the OK button, line lock
releases immediately and normal vehicle
function resumes. When line lock engages,
a countdown timer shows the remaining
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