User Manual - Page 473

For 2021 F-150 King Ranch®.

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Engine Air Filter - Information Messages - Diesel
ActionMessage
Indicates the engine air filter is performing as expected.Filter OK
Indicates that there is a higher than expected restriction
across the engine air filter, which could represent an air filter
at full useful life or a filter with an obstruction.
When this displays, inspect the engine air filter and replace
if necessary.
After the inspection or engine air filter replacement, you must
reset the system in order to change the status from Check
Filter to Filter OK.
Check Filter See Manual
Indicates that there is an error within the electronic air filter
maintenance minder system requiring service.
System Fault See Manual
DRAINING THE FUEL FILTER
WATER TRAP - DIESEL
WARNING: Do not drain the
water-in-fuel separator while the engine
is running. Failure to follow this warning
may result in fire, serious injury, death or
property damage.
WARNING: Do not dispose of fuel
in the household refuse or the public
sewage system. Use an authorized waste
disposal facility.
Your vehicle's fuel system has a fuel filter
and water separator to remove water from
the fuel.
If the water in fuel indicator illuminates
when the engine is running, stop your
vehicle as soon as safely possible, shut off
the engine, then drain the fuel and water
separator.
Note: Allowing water to stay in the fuel
system after the water in fuel indicator
illuminates could result in extensive damage
or failure of the fuel injection system.
The fuel water trap is above the frame rail
under the driver side of the vehicle.
Make sure the ignition is off before
performing the following steps.
E254226
Front of Vehicle.A
1. Loosen the drain plug approximately
one and a half turns.
2. Allow the water to drain.
3. Tighten the drain plug until you feel a
strong resistance.
4. Switch the ignition on for 30 seconds,
then switch the ignition off. Repeat
twice.
470
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202007, First-Printing
Maintenance
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