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Starting and Stopping the Engine
Cold Weather Starting
WARNING: 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.
WARNING: Do not mix diesel with
gasoline, gasohol or alcohol. This could
cause an explosion.
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 104).
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 come 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 ready to drive.
2025 F-650/750 (TBC) , enUSA, Edition date: 202310, First-Printing
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. Once the engine starts,
the glow plugs may remain on for a
period. If you attempt to start the
engine before the glow plug activation
time ends, but it fails to start, reset the
glow plugs by turning the key to the off
position.
3. Once 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.
103
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