Ford F-650/750 (2018 year). Manual — part 21

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 in (3 cm).

•

Set your climate control to outside air.

STARTING A DIESEL ENGINE

WARNING

Operation of a diesel engine near
flammable vapors in the air may
cause the engine speed to increase

uncontrollably and over speed. If this
situation occurs, mechanical damage, fire,
explosion, personal injury or death could
result. Turning off the ignition key does not
slow or stop the engine due to
uncontrollable fueling of the engine
through flammable vapors being drawn
into the engine air inlet. Operation of
components, for example starter,
alternator, electric motors and static
electricity could also ignite flammable
vapors. Do not operate your vehicle in the
possible presence of flammable vapors
unless both a complete hazard analysis is
carried out and necessary additional safety
processes and/or equipment, for example
vapor testing, air intake shutoff devices
and ventilation are utilized. You are
responsible for using those processes
and/or equipment to make sure that the
diesel engine and all other components on
your vehicle can be operated safely under
the specific conditions and hazards that
may be encountered.

Read all starting instructions carefully
before you start your vehicle.

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 using the engine
coolant temperature, barometric pressure
sensor and environmental temperature
sensor will 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.

Before starting the engine, check the
following:
•

Make sure all occupants have fastened
their safety belts.

•

Make sure the headlamps and
electrical accessories are off.

•

Make sure the parking brake is on.

•

Make sure the transmission is in park
(P) or neutral (N).

•

Turn the ignition key to the on position.

Note: Do not press the accelerator during
starting.

Cold Weather Starting

WARNINGS

Do not use starting fluid, for example
ether, in the air intake system (see
air filter decal). 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
practice creates a serious fire hazard

and causes engine performance problems.

We recommend using the engine block
heater for starting when the ambient
temperature is at or below-9°F (-23°C)
See Engine Block Heater (page 90).

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

Do not crank the engine for more than 10
seconds as starter damage may occur. If
the engine fails to start, turn the key to the
off position and wait 30 seconds before
trying again.

Your vehicle may be equipped with 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 use for 30 seconds after starting
your vehicle. A message appears in the
information display as your vehicle warms
up. By not allowing the accelerator pedal
use, the engine oil can properly lubricate
the bearings preventing engine damage
due to lack of proper lubrication. After the
30-second warm-up period, the
accelerator pedal is operational again and
a message appears informing you that your
vehicle is ok to drive.

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

Illuminates when you switch the
ignition on as part of the
pre-starting system.

1.

Turn the key to the on position without
turning the key to the start position. Do
not start the engine until the wait to
start indicator turns off.

2. When the wait to start indicator turns

off, turn the key to the start position
and release the key as soon as the
engine starts. After starting 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 need to reset the glow plugs
by turning the key to the off position.

3. After the engine starts, allow it to idle

for about 15 seconds. This is to protect
the engine. Do not increase engine
speed until the oil pressure gauge
indicates normal pressure.

SWITCHING OFF THE ENGINE

Allow the engine to idle for three to five
minutes before shutting it down. The larger
the engine, the greater the need is for this
idling period.

Note: Try to limit engine idle to 10 minutes.
Excessive idling reduces fuel economy.

ENGINE IDLE SHUTDOWN

(If

Equipped)

WARNING

In the event of engine shutdown,
make sure your vehicle is safely off
the road and the problem is resolved

before returning to the road. Failure to do
so may result in a crash, serious injury or
death.

This feature automatically shuts down the
engine when it has been idling in park (P)
or neutral (N) for an extended period,
depending on the setting.

When the engine idle shutdown process
has started:
•

A chime sounds and a message
appears in the information display
showing a timer counting down from
30 seconds.

•

You can reset the timer by pressing the
brake pedal, accelerator pedal, or by
shifting into another gear.

•

If you do not intervene within 30
seconds, the engine shuts down and a
message appears in the information
display alerting you that the engine has
shut down.

•

Shortly after the engine has shut down,
the electrical system simulates a key
off and even though the ignition is still
on, the electrical system simulates a
normal accessory delay period before
shutting down.

•

You must switch the ignition off to
reset the system before restarting your
vehicle.

The engine idle shutdown timer does not
start if:
•

The engine is operating in battery
charge protect or power take-off mode.

•

The exhaust emission control device is
regenerating.

ENGINE BLOCK HEATER

(If

Equipped)

WARNINGS

Failure to follow engine block heater
instructions could result in property
damage or serious personal injury.

Do not use your heater with
ungrounded electrical systems or
two-pronged adapters. There is a risk

of electrical shock.

Note: The heater is most effective when
outdoor temperatures are below 0°F
(-18°C).

The heater acts as a starting aid by
warming the engine coolant. This allows
the climate control system to respond
quickly. The equipment includes a heater
element (installed in the engine block) and
a wire harness. You can connect the
system to a grounded 120-volt AC
electrical source.

We recommend that you do the following
for a safe and correct operation:
•

Use a 16-gauge outdoor extension cord
that is product certified by
Underwriter’s Laboratory (UL) or
Canadian Standards Association
(CSA). This extension cord must be
suitable for use outdoors, in cold

temperatures, and be clearly marked
Suitable for Use with Outdoor
Appliances. Do not use an indoor
extension cord outdoors. This could
result in an electric shock or become a
fire hazard.

•

Use as short an extension cord as
possible.

•

Do not use multiple extension cords.

•

Make sure that when in operation, the
extension cord plug and heater cord
plug connections are free and clear of
water. This could cause an electric
shock or fire.

•

Make sure your vehicle is parked in a
clean area, clear of combustibles.

•

Make sure the heater, heater cord and
extension cord are firmly connected.

•

Check for heat anywhere in the
electrical hookup once the system has
been operating for approximately 30
minutes.

•

Make sure the system is unplugged and
properly stowed before starting and
driving your vehicle. Make sure the
protective cover seals the prongs of the
block heater cord plug when not in use.

•

Make sure the heater system is
checked for proper operation before
winter.

Using the Engine Block Heater

The engine block heater plug is on the
right-hand side of the front bumper next
to the recovery hook. Open the hinged,
circular door and make sure the receptacle
terminals are clean and dry prior to use.
Clean them with a dry cloth if necessary.

The heater uses 0.4 to 1.0 kilowatt-hours
of energy per hour of use. The system does
not have a thermostat. It achieves
maximum temperature after
approximately three hours of operation.
Using the heater longer than three hours
does not improve system performance and
unnecessarily uses electricity.

Rapid Heat Supplemental Heating
System

(If Equipped)

Note: Additional aftermarket electrical
loads operated during engine warm up may
affect the performance of the rapid heat
supplemental heater.

The optional rapid heat feature is an
electrically powered device that provides
supplemental heat during engine warm up.
During initial warm up, you should use a
mid to low blower speed for maximum
effectiveness. When operating in
automatic mode (when equipped) the
climate control unit determines the
appropriate blower speed for existing
conditions.