Ford Super Duty (2018 year). Manual — part 44

2. Turn the key to position D to start the

engine.

3. When the engine starts, release the

brake pedal.

Do not crank the engine for more than 10
seconds as starter damage may occur. If
the engine does not start, switch the
ignition off and wait 30 seconds before
trying again.

Vehicles with Keyless Start

Note: Do not touch the accelerator pedal.

Note: If the push button ignition switch is
pressed again prior to the engine starting
the ignition will switch to accessory mode
and will not start.

Note: If the brake pedal is released before
the engine has started, follow the engine
start sequence again.

1.

Fully depress the brake pedal.

2. Press the center of the push button

ignition switch.

3. When the engine starts, release the

brake pedal.

Failure to Start

If you cannot start the engine after three
attempts, wait 10 seconds and follow this
procedure:

1.

Fully depress the brake pedal.

2. Fully press the accelerator pedal and

hold it there.

3. Start the engine.

Stopping the Engine When Your
Vehicle is Stationary

1.

When your vehicle has stopped, shift
into park (P) and switch the ignition
off.

2. Apply the parking brake.

Stopping the Engine When Your
Vehicle is Moving

WARNING

Switching off the engine when your
vehicle is still moving results in a
significant decrease in braking

assistance. Higher effort is required to
apply the brakes and to stop your vehicle.
A significant decrease in steering
assistance could also occur. The steering
does not lock, but higher effort could be
required to steer your vehicle. When you
switch the ignition off, some electrical
circuits, for example airbags, also turn off.
If you unintentionally switch the ignition
off, shift into neutral (N) and restart the
engine.

1.

Put the transmission into neutral (N)
and use the brakes to bring your vehicle
to a safe stop.

2. When your vehicle has stopped, shift

into park (P) and switch the ignition
off.

3. Apply the parking brake.

Automatic Engine Shutdown

If your vehicle is equipped with a keyless
ignition, it has a feature that automatically
shuts down the engine if it has been idling
for an extended period of time. The ignition
also turns off in order to save battery
power. Before the engine shuts down, a
message appears in the information
display showing a timer counting down
from 30 seconds. If you do not intervene
within 30 seconds, the engine shuts down.
Another message appears in the
information display to inform you that the
engine has shut down in order to save fuel.
Start your vehicle as you normally do.

Cold Weather Starting (Flexible
Fuel Vehicles Only)

The starting characteristics of all grades
of E85 ethanol make it unsuitable for use
when ambient temperatures fall below
0°F (-18°C). Consult your fuel distributor
for the availability of winter grade ethanol.
As the outside temperature approaches
freezing, ethanol fuel distributors should
supply winter grade ethanol, the same as
with unleaded gasoline.

If summer grade ethanol is used in cold
weather conditions, 0°F (-18°C), you may
experience increased cranking times, rough
idle or hesitation until the engine has
warmed up.

You may experience a decrease in
performance when the engine is cold when
operating on E85 ethanol.

Do not use starting fluid such as ether in
the air intake system. Such fluid could
cause immediate explosive damage to the
engine and possible personal injury.

If you should experience cold weather
starting problems on E85 ethanol, and
neither an alternative brand of E85 ethanol
nor an engine block heater is available, the
addition of unleaded gasoline to your tank
improves cold starting performance. Your
vehicle is designed to operate on E85
ethanol alone, unleaded gasoline alone, or
any mixture of the two.

If the Engine Fails to Start Using the
Preceding Instructions (Flexible Fuel
Vehicles Only)

1.

Press the accelerator pedal down
one-third to one-half of its travel, and
then crank the engine.

2. When the engine starts, release the

key, then gradually release the
accelerator pedal as the engine speed
increases. If the engine still does not
start, repeat Step 1.

Guarding Against Exhaust Fumes

WARNING

Exhaust leaks may result in entry of
harmful and potentially lethal fumes
into the passenger compartment. If

you smell exhaust fumes inside your
vehicle, have your vehicle inspected
immediately. Do not drive if you smell
exhaust fumes.

Important Ventilating Information

If you stop your vehicle and then leave the
engine idling for long periods of time, we
recommend that you do one of the
following:

•

Open the windows at least 1 inch (2.5
centimeters).

•

Set your climate control to outside air.

STARTING A DIESEL ENGINE -
6.7L DIESEL

Read all starting instructions carefully
before you start your vehicle.

For temperatures below 32°F (0°C), the
use of the correct grade engine oil is
essential for proper operation. Refer to
engine oil specifications for more
information. See Capacities and
Specifications (page 433).

Your vehicle may have a cold weather
starting strategy that prevents severe
engine damage by assisting in engine
lubrication warm-up. In extremely cold
ambient temperatures, this strategy
activates and prevents the accelerator
pedal from being used for 30 seconds after
you start your vehicle. A message appears
in the information display as your vehicle
warms up. By not allowing the accelerator
pedal to be used, the engine oil is allowed
to properly lubricate the bearings

preventing engine damage due to lack of
proper lubrication. After the 30 second
warm-up period, the accelerator pedal will
be operational again and a message
appears informing you the vehicle is ok to
drive.

When you start the engine in extremely
cold temperatures -15°F (-26°C), we
recommend that you allow the engine to
idle for several minutes before you drive
the vehicle.

Before starting the engine check the
following:
•

Make sure all occupants have fastened
their seatbelts.

•

Make sure the headlamps and
electrical accessories are off.

•

Make sure the parking brake is on.

•

Make sure the transmission is in park
(P).

Note: Do not press the accelerator during
starting.

Vehicles with an Ignition Key

Note: Do not touch the accelerator pedal.

1.

Fully depress the brake pedal.

2. Turn the key to position C
Note: A message will appear Engine Start
Pending, Please Wait.

3. Wait until the engine glow-plug

indicator turns off.

4. Turn the key to position D to start the

engine.

5. When the engine starts, release the

brake pedal.

Do not crank the engine for more than 10
seconds as starter damage may occur. If
the engine does not start, switch the
ignition off and wait 30 seconds before
trying again.

Vehicles with Keyless Start

Note: Do not touch the accelerator pedal.

Note: If the push button ignition switch is
pressed again prior to the engine starting
the ignition will switch to accessory mode
and will not start.

Note: If the brake pedal is released before
the engine has started, follow the engine
start sequence again.

1.

Fully depress the brake pedal.

2. Press the center of the push button

ignition switch.

Note: A message will appear Engine Start
Pending, Please Wait.

3. When the engine starts, release the

brake pedal.

Diesel Engine Fast Start Glow Plug
System

The diesel engine glow system consists of:

•

Eight glow plugs (one per cylinder)

•

Glow Plug Control Module

•

Engine Coolant Temperature sensor

•

Barometric pressure sensor

•

Environmental temperature sensor

The powertrain and glow plug control
modules electronically control the glow
plug system. After you switch the ignition
on, the glow plug control module
immediately energizes the glow plugs. The
glow plug control module uses the engine
coolant temperature, barometric pressure
sensor and environmental temperature
sensor to determine how long the glow
plugs stay energized. The required time for
the glow plugs to be energized decreases
as the coolant temperature, barometric
pressure and environmental temperature
increase.

Automatic Engine Shutdown

If your vehicle is equipped with a keyless
ignition, it has a feature that automatically
shuts down the engine if it has been idling
for an extended period. The ignition also
turns off in order to save battery power.
Before the engine shuts down, a message
appears in the information display showing
a timer counting down from 30 seconds.
If you do not intervene within 30 seconds,
the engine shuts down. Another message
appears in the information display to
inform you that the engine has shut down
in order to save fuel. Start your vehicle as
you normally do.

Cold Weather Starting

WARNINGS

Do not use starting fluid, for example
ether, in the air intake system. Such
fluid could cause immediate

explosive damage to the engine and
possible personal injury.

Do not add gasoline, gasohol, alcohol
or kerosene to diesel fuel. This
creates a serious fire hazard and

causes engine performance problems.

We recommend that the engine block
heater be used for starting when the
temperature is -9°F (-23°C) or colder. See
Engine Block Heater (page 185).

When operating in cold weather, you may
use Motorcraft® cetane improvers or
non-alcohol-based cetane improvers from
a reputable manufacturer as needed.

Switch the ignition on. Do not
start the engine until the
glow-plug indicator turns off.

When the glow plug pre-heat indicator
turns off, turn the key to start. After you
start the engine, the glow plugs may
remain on for a period. If you do not start
the engine before the glow plug activation
time ends, you will need to reset the glow
plugs by switching the ignition off. After
the engine starts, allow it to idle for about
15 seconds. This protects the engine. Do
not increase engine speed until the oil
pressure gauge indicates normal pressure.

Cold Weather Operation

Note: Idling in cold weather does not heat
the engine to its normal operating
temperature. Long periods of idling,
especially in cold weather, can cause a
buildup of deposits which can cause engine
damage.

Change to a lighter grade engine oil to
make starting easier under these
conditions. Refer to engine oil
specifications. See Capacities and
Specifications (page 433).

Diesel fuel is adjusted seasonally for cold
temperatures. Diesel fuel which has not
been properly formulated for the ambient
conditions may gel which can clog the fuel
filters. One indication that the fuel filter(s)
may be clogged is if the engine starts, stalls
after a short time, and then does not
restart. If you have been using biodiesel,
you may need to use a fuel with lower
biodiesel content, try another brand, or
discontinue using biodiesel. Do not use
alcohol based additives to correct fuel
gelling. This may result in damage to the
fuel injectors and system. Use the proper
anti-gel and performance improvement
product. See Capacities and
Specifications (page 433).