engine LINCOLN NAVIGATOR 2020 Service Manual

•
Elevation is below about 11,000 ft
(3,350 m).
• Ambient temperature is moderate.
• If equipped with selectable drive modes
and when you select Normal, Conserve,
Slippery.
• The trailer is not connected.
• Tow haul mode not engaged.
• You have not selected Manual mode. The green Auto-Start-Stop
indicator light on the instrument
cluster will illuminates to indicate
when the automatic engine stop occurs. If the instrument cluster is
equipped with a grey
Auto-Start-Stop indicator light, it
illuminates when automatic engine stop is
not available due to one of the above noted
conditions not being met. Automatic Engine Restart
Any of the following conditions results in an
automatic restart of the engine:
•
You have removed your foot from the
brake pedal.
• You press the accelerator pedal.
• You press the accelerator and the brake
pedal at the same time.
• The driver seatbelt becomes unfastened
or the driver door is ajar.
• Your vehicle is moving.
• The interior compartment does not meet
customer comfort when air conditioning
or heat is on.
• Fogging of the windows could occur and
the air conditioning is on.
• The battery is not within optimal
operating conditions.
• You have exceeded the maximum engine
off time.
• When you press the Auto-Start-Stop
button with the engine automatically
stopped. •
The front defroster is turned to the Max
setting.
• When you shift into park (P) the engine
will restart.
Any of the following conditions may result in
an automatic restart of the engine:
• You have increased the blower fan speed
or changed the climate control
temperature.
• You have an electrical accessory turned
on or plugged in.
Note: You may notice that the climate seat
fan fluctuates during an automatic restart.
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Disabling Auto-Start-Stop
Press the Auto-Start-Stop button located on
the center console to switch the system off.
The button illuminates. This only deactivates
the system for the current ignition cycle.
Press the button again to restore
Auto-Start-Stop function.
Note:
If the Shift to P, Restart Engine
message appears and the amber
Auto-Start-Stop indicator light is flashing,
automatic restart is not available. You must
restart the vehicle manually. See
Information Displays (page 133). If your vehicle is in an engine off
Auto-Start-Stop state and you change the
transmission to reverse ®) when the brake
pedal is not pressed, the message
Auto-Start-Stop Press Brake to Start Engine
appears. You must press the brake pedal
within 60 seconds or a shift to park (P) and
a manual restart is required.
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SAFETY PRECAUTIONS
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire. WARNING:
The fuel system may be
under pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel until
the sound stops. Otherwise, fuel may spray
out, which could cause serious personal
injury. WARNING:
Fuels can cause serious
injury or death if misused or mishandled. WARNING:
Fuel may contain
benzene, which is a cancer-causing agent. WARNING:
When refueling always
shut the engine off and never allow sparks
or open flames near the fuel tank filler
valve. Never smoke or use a cell phone
while refueling. Fuel vapor is extremely
hazardous under certain conditions. Avoid
inhaling excess fumes.
Follow these guidelines when refueling:
• Extinguish all smoking materials and any
open flames before refueling your
vehicle.
• Always switch the engine off before
refueling.
• Automotive fuels can be harmful or fatal
if swallowed. Fuel is highly toxic and if
swallowed can cause death or permanent
injury. If fuel is swallowed immediately
call a physician, even if no symptoms are
immediately apparent. The toxic effects
of fuel may not be apparent for hours. •
Avoid inhaling fuel vapors. Inhaling fuel
vapor can lead to eye and respiratory
tract irritation. In severe cases, excessive
or prolonged breathing of fuel vapor can
cause serious illness and permanent
injury.
• Avoid getting fuel in your eyes. If you
splash fuel in your eyes, immediately
remove contact lenses (if worn), flush with
water for 15 minutes and seek medical
attention. Failure to seek proper medical
attention could lead to permanent injury.
• Fuels can be harmful if absorbed through
the skin. If you splash fuel on your skin,
clothing or both, promptly remove
contaminated clothing and thoroughly
wash your skin with soap and water.
Repeated or prolonged skin contact
causes skin irritation.
• Be particularly careful if you are taking
Antabuse or other forms of Disulfiram for
the treatment of alcoholism. Breathing
fuel vapors could cause an adverse
reaction, serious personal injury or
sickness. Immediately call a physician if
you experience any adverse reactions.
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FUEL QUALITY
Choosing the Right Fuel
Your vehicle is designed to operate on
regular unleaded gasoline with a minimum
pump (R+M)/2 octane rating of 87.
Some fuel stations, particularly those in high
altitude areas, offer fuels posted as regular
unleaded gasoline with an octane rating
below 87. The use of these fuels could result
in engine damage that will not be covered
by the vehicle warranty. For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well as
other conditions, for example when towing
a trailer. See Towing (page 311).
Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact an
authorized dealer to prevent any engine
damage.
We recommend Top Tier detergent
gasolines, where available to help minimize
engine deposits and maintain optimal vehicle
and engine performance. For additional
information, refer to www.toptiergas.com.
Note: Use of any fuel for which the vehicle
was not designed can impair the emission
control system, cause loss of vehicle
performance, and cause damage to the
engine which may not be covered by the
vehicle Warranty. Do not use:
•
Diesel fuel.
• Fuels containing kerosene or paraffin.
• Fuel containing more than 15% ethanol
or E85 fuel.
• Fuels containing methanol.
• Fuels containing metallic-based additives,
including manganese-based compounds.
• Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
• Leaded fuel, using leaded fuel is
prohibited by law.
The use of fuels with metallic compounds
such as methylcyclopentadienyl manganese
tricarbonyl (commonly known as MMT), which
is a manganese-based fuel additive, will
impair engine performance and affect the
emission control system.
FUEL FILLER FUNNEL LOCATION
The fuel filler funnel is in the spare wheel
storage tray.
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RUNNING OUT OF FUEL
Running out of fuel can cause damage not
covered by the vehicle Warranty.
If your vehicle runs out of fuel:
•
Add a minimum of 1.3 gal (5 L) of fuel to
restart the engine.
• You may need to switch the ignition from
off to on several times after refueling to
allow the fuel system to pump the fuel
from the tank to the engine. When
restarting, cranking time takes a few
seconds longer than normal.
Note: If your vehicle is on a steep slope,
more fuel may be required.
Filling a Portable Fuel Container WARNING:
Flow of fuel through a
fuel pump nozzle can produce static
electricity. This can cause a fire if you are
filling an ungrounded fuel container. Use the following guidelines to avoid
electrostatic charge build-up, which can
produce a spark, when filling an ungrounded
fuel container:
•
Only use an approved fuel container to
transfer fuel to your vehicle. Place the
container on the ground when filling it.
• Do not fill a fuel container when it is
inside your vehicle (including the cargo
area).
• Keep the fuel pump nozzle in contact
with the fuel container when filling it.
• Do not use a device that holds the fuel
pump nozzle lever in the fill position.
Adding Fuel From a Portable Fuel
Container WARNING: Do not insert the nozzle
of a fuel container or an aftermarket funnel
into the fuel filler neck. This may damage
the fuel system filler neck or its seal and
cause fuel to run onto the ground. WARNING:
Do not try to pry open or
push open the capless fuel system with
foreign objects. This could damage the fuel
system and its seal and cause injury to you
or others. WARNING: Do not dispose of fuel in
the household refuse or the public sewage
system. Use an authorized waste disposal
facility.
When refueling the vehicle fuel tank from a
fuel container, use the fuel filler funnel
included with your vehicle.
See Fuel Filler
Funnel Location (page 212).
Note: Do not use aftermarket funnels as they
may not work with the capless fuel system
and can damage it.
When refueling the vehicle fuel tank from a
fuel container, do the following:
1. Fully open the fuel filler door.
2. Fully insert the fuel filler funnel into the fuel filler inlet.
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Left-hand side. Pull the rear of the
fuel filler door to open it.
C
Right-hand side. Pull the rear of the
fuel filler door to open it.
D
Refueling Your Vehicle WARNING: When refueling always
shut the engine off and never allow sparks
or open flames near the fuel tank filler
valve. Never smoke or use a cell phone
while refueling. Fuel vapor is extremely
hazardous under certain conditions. Avoid
inhaling excess fumes. WARNING:
The fuel system may be
under pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel until
the sound stops. Otherwise, fuel may spray
out, which could cause serious personal
injury. WARNING:
Do not pry open the fuel
tank filler valve. This could damage the fuel
system. Failure to follow this instruction
could result in fire, personal injury or death. WARNING:
Do not remove the fuel
pump nozzle from its fully inserted position
when refueling. WARNING:
Stop refueling when the
fuel pump nozzle automatically shuts off
for the first time. Failure to follow this will
fill the expansion space in the fuel tank and
could lead to fuel overflowing. WARNING:
Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire. WARNING: Wait at least five seconds
before removing the fuel pump nozzle to
allow any residual fuel to drain into the fuel
tank.
1. Fully open the fuel filler door. 2. Select the correct fuel pump nozzle for
your vehicle. 3.
Insert the fuel pump nozzle up to the first
notch on the nozzle A. Keep the fuel
pump nozzle resting on the fuel tank filler
pipe.
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A

4. Hold the fuel pump nozzle in position B
when refueling. Holding the fuel pump
nozzle in position A can affect the flow
of fuel and shut off the fuel pump nozzle
before the fuel tank is full. 5.
Operate the fuel pump nozzle within the
area shown. 6. When you finish refueling slightly raise
the fuel pump nozzle and slowly remove
it.
7. Fully close the fuel filler door.
Do not attempt to start the engine if you have
filled the fuel tank with incorrect fuel.
Incorrect fuel use could cause damage not
covered by the vehicle Warranty. Have your
vehicle immediately checked.
Refueling System Warning (If Equipped)
If the fuel tank filler valve does not fully close,
a message could appear in the information
display. Message
Check Fuel Fill Inlet
If the message appears, do the following:
1. Stop your vehicle as soon as it is safe to
do so and switch the engine off.
2. Shift into park (P) or neutral (N).
3. Apply the parking brake.
4. Fully open the fuel filler door.
5. Check the fuel tank filler valve for any debris that may be restricting its
movement.
6. Remove any debris from the fuel tank filler valve.
7. Fully insert a fuel pump nozzle or the fuel
filler funnel provided with your vehicle
into the fuel filler pipe.
See Fuel Filler
Funnel Location (page 212). This action
should dislodge any debris that may be
preventing the fuel tank filler valve from
fully closing.
8. Remove the fuel pump nozzle or fuel filler
funnel from the fuel filler pipe.
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A
B E206912
AB E119081

9. Fully close the fuel filler door.
Note:
The message may not immediately
reset. If the message continues to appear
and a warning lamp illuminates, have your
vehicle checked as soon as possible.
FUEL CONSUMPTION
Advertised Capacity
The advertised capacity is the maximum
amount of fuel that you can add to the fuel
tank after running out of fuel. Included in the
advertised capacity is an empty reserve. The
empty reserve is an unspecified amount of
fuel that remains in the fuel tank when the
fuel gauge indicates empty.
Note: The amount of fuel in the empty
reserve varies and should not be relied upon
to increase driving range.
Fuel Economy
Your vehicle calculates fuel economy figures
through the trip computer average fuel
function. The first 1,000 mi (1,500 km) of driving is the
break-in period of the engine. A more
accurate measurement is obtained after
2,000 mi (3,000 km).
Impacting Fuel Economy
• Incorrect tire inflation pressures.
• Fully loading your vehicle.
• Carrying unnecessary weight.
• Adding certain accessories to your
vehicle such as bug deflectors, rollbars
or light bars, running boards and ski
racks.
• Using fuel blended with alcohol.
See
Fuel Quality (page 212).
• Fuel economy may decrease with lower
temperatures.
• Fuel economy may decrease when
driving short distances.
• You may get better fuel economy when
driving on flat terrain than when driving
on hilly terrain.
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EMISSION LAW
WARNING: Do not remove or alter
the original equipment floor covering or
insulation between it and the metal floor
of the vehicle. The floor covering and
insulation protect occupants of the vehicle
from the engine and exhaust system heat
and noise. On vehicles with no original
equipment floor covering insulation, do not
carry passengers in a manner that permits
prolonged skin contact with the metal floor.
Failure to follow these instructions may
result in fire or personal injury.
U.S. federal laws and certain state laws
prohibit removing or rendering inoperative
emission control system components. Similar
federal or provincial laws may apply in
Canada. We do not approve of any vehicle
modification without first determining
applicable laws. Tampering with emissions control
systems including related sensors
or the Diesel Exhaust Fluid system
can result in reduced engine power and the
illumination of the service engine soon light.
Tampering With a Noise Control
System
Federal laws prohibit the following acts:
• Removal or rendering inoperative by any
person other than for purposes of
maintenance.
• Repair or replacement of any device or
element of the design incorporated into
a new vehicle for the purpose of noise
control prior to its sale or delivery to the
ultimate purchaser or while it is in use.
• The use of the vehicle after any person
removes or renders inoperative any
device or element of the design. The U.S. Environmental Protection Agency
may presume to constitute tampering as
follows:
•
Removal of hood blanket, fender apron
absorbers, fender apron barriers,
underbody noise shields or acoustically
absorptive material.
• Tampering or rendering inoperative the
engine speed governor, to allow engine
speed to exceed manufacturer
specifications.
If the engine does not start, runs rough,
experiences a decrease in engine
performance, experiences excess fuel
consumption or produces excessive exhaust
smoke, check for the following:
• A plugged or disconnected air inlet
system hose.
• A plugged engine air filter element.
• Water in the fuel filter and water
separator.
• A clogged fuel filter.
• Contaminated fuel.
• Air in the fuel system, due to loose
connections.
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•
An open or pinched sensor hose.
• Incorrect engine oil level.
• Incorrect fuel for climatic conditions.
• Incorrect engine oil viscosity for climactic
conditions.
Note: Some vehicles have a lifetime fuel filter
that is integrated with the fuel tank. Regular
maintenance or replacement is not needed.
Note: If these checks do not help you correct
the concern, have your vehicle checked as
soon as possible.
Noise Emissions Warranty, Prohibited
Tampering Acts and Maintenance
On January 1, 1978, Federal regulation
became effective governing the noise
emission on trucks over 10,000 lb (4,536 kg)
Gross Vehicle Weight Rating (GVWR). The
preceding statements concerning prohibited
tampering acts and maintenance, and the
noise warranty found in the Warranty Guide,
are applicable to complete chassis cabs over
10,000 lb (4,536 kg)
GVWR. CATALYTIC CONVERTER WARNING:
Do not park, idle or drive
your vehicle on dry grass or other dry
ground cover. The emission system heats
up the engine compartment and exhaust
system, creating the risk of fire. WARNING:
The normal operating
temperature of the exhaust system is very
high. Never work around or attempt to
repair any part of the exhaust system until
it has cooled. Use special care when
working around the catalytic converter.
The catalytic converter heats up to a very
high temperature after only a short period
of engine operation and stays hot after the
engine is switched off. 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. Your vehicle has various emission control
components and a catalytic converter that
enables it to comply with applicable exhaust
emission standards.
To make sure that the catalytic converter and
other emission control components continue
to work properly:
•
Do not crank the engine for more than
10 seconds at a time.
• Do not run the engine with a spark plug
lead disconnected.
• Do not push-start or tow-start your
vehicle. Use booster cables.
See Jump
Starting the Vehicle (page 342).
• Use only the specified fuel listed.
• Do not switch the ignition off when your
vehicle is moving.
• Avoid running out of fuel.
• Have the items listed in scheduled
maintenance information performed
according to the specified schedule.
Note: Resulting component damage may
not be covered by the vehicle Warranty.
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