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When the glow plug pre-heat indicator
turns off, turn the key to start 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 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 is to protect the engine.
Do not increase engine speed until the oil
pressure gauge indicates normal pressure.
For vehicles with keyless start:
1. Fully depress brake pedal and hold to
allow time for glow-plugs to heat.
2. Press and release the start button.
Note: A message "Engine Start Pending,
Please Wait", along with the glow plug
indicator displays on the instrument cluster.
3. When the engine starts, release the
brake pedal.
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.
Changing to a lighter grade engine oil also
makes 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).
Your vehicle is equipped with a fuel and
water separator that recirculates fuel from
the engine to help prevent fuel filter
clogging. To avoid engine fuel starvation
during cold weather operation of 32°F
(0°C) or below, we recommended that
the fuel level in your tank should not drop
below 1⁄4 full. This helps prevent air from
entering the fuel system and stalling the
engine.
In cold weather below 32°F (0°C), the
engine may slowly increase to a higher idle
speed if left idling in park (P). As the engine
warms-up, the engine sound level
decreases due to the activation of
PCM-controlled sound reduction features.
If you operate your vehicle in a heavy
snowstorm or blowing snow conditions,
snow and ice can clog the engine air
induction. If this occurs, the engine may
experience a significant reduction in power
output. At the earliest opportunity, clear
all the snow and/or ice away from inside
the air filter assembly. Remove the air
cleaner cover and the pleated paper filter,
leaving the foam filter in and remove any
snow or ice. Make sure you install the foam
filter correctly in place. Remove any debris,
snow or ice on the foam filter by brushing
the surface with soft brush. Once you have
cleared all of the debris, reinstall the air
filter and assembly.
Do not use water, solvents, or a hard brush
for cleaning the foam filter.
186
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201907, Third-Printing-
Starting and Stopping the Engine
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