fuel LINCOLN AVIATOR 2023 Service Manual

• 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 366).
• 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.
235
Engine Emission Control

The scheduled maintenance items listed in
scheduled maintenance information are
essential to the life and performance of your
vehicle and to its emissions system.
If you use anything other than Ford,
Motorcraft or Ford-authorized parts for
maintenance replacements or for service of
components affecting emission control, such
non-Ford parts should be equivalent to
genuine Ford Motor Company parts in
performance and durability.
Illumination of the service engine soon
indicator, charging system warning light or
the temperature warning light, fluid leaks,
strange odors, smoke or loss of engine
power could indicate that the emission
control system is not working properly.
An improperly operating or damaged exhaust
system may allow exhaust to enter the
vehicle. Have a damaged or improperly
operating exhaust system inspected and
repaired immediately.Do not make any unauthorized changes to
your vehicle or engine. By law, vehicle
owners and anyone who manufactures,
repairs, services, sells, leases, trades
vehicles, or supervises a fleet of vehicles are
not permitted to intentionally remove an
emission control device or prevent it from
working. Information about your vehicle’s
emission system is on the Vehicle Emission
Control Information Decal located on or near
the engine. This decal also lists engine
displacement.
Please consult your warranty information for
complete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as the
on-board diagnostics system (OBD-II) that
monitors the engine’s emission control
system. The system protects the environment
by making sure that your vehicle continues
to meet government emission standards. The
OBD-II system also assists a service
technician in properly servicing your vehicle.
When the service engine soon
indicator illuminates, the OBD-II
system has detected a malfunction.
Temporary malfunctions may cause the
service engine soon indicator to illuminate.
Examples are:
1. Your vehicle has run out of fuel—the
engine may misfire or run poorly.
2. Poor fuel quality or water in the fuel—the
engine may misfire or run poorly.
3. The fuel fill inlet may not have closed
properly. See Refueling (page 229).
4. Driving through deep water—the
electrical system may be wet.
You can correct these temporary
malfunctions by filling the fuel tank with good
quality fuel, properly closing the fuel fill inlet
or letting the electrical system dry out. After
three driving cycles without these or any
other temporary malfunctions present, the
service engine soon indicator should stay off
the next time you start the engine. A driving
cycle consists of a cold engine startup
followed by mixed city and highway driving.
No additional vehicle service is required.
236
Engine Emission Control

If the service engine soon indicator remains
on, have your vehicle serviced at the first
available opportunity. Although some
malfunctions detected by the OBD-II may not
have symptoms that are apparent, continued
driving with the service engine soon indicator
on can result in increased emissions, lower
fuel economy, reduced engine and
transmission smoothness and lead to more
costly repairs.
Readiness for Inspection and
Maintenance (I/M) Testing
Some state and provincial and local
governments may have
Inspection/Maintenance (I/M) programs to
inspect the emission control equipment on
your vehicle. Failure to pass this inspection
could prevent you from getting a vehicle
registration.
If the service engine soon indicator
is on or the bulb does not work,
your vehicle may need service.
See On-Board Diagnostics.Your vehicle may not pass the I/M test if the
service engine soon indicator is on or not
working properly (bulb is burned out), or if
the OBD-II system has determined that some
of the emission control systems have not
been properly checked. In this case, the
vehicle is not ready for I/M testing.
If the vehicle’s engine or transmission has
just been serviced, or the battery has
recently run down or been replaced, the
OBD-II system may indicate that the vehicle
is not ready for I/M testing. To determine if
the vehicle is ready for I/M testing, turn the
ignition key to the on position for 15 seconds
without cranking the engine. If the service
engine soon indicator blinks eight times, it
means that the vehicle is not ready for I/M
testing; if the service engine soon indicator
stays on solid, it means that your vehicle is
ready for I/M testing.
The OBD-II system checks the emission
control system during normal driving. A
complete check may take several days.
If the vehicle is not ready for I/M testing, you
can perform the following driving cycle
consisting of mixed city and highway driving:1. 15 minutes of steady driving on an
expressway or highway followed by 20
minutes of stop-and-go driving with at
least four 30-second idle periods.
2. Allow your vehicle to sit for at least eight
hours with the ignition off. Then, start the
vehicle and complete the above driving
cycle. The vehicle must warm up to its
normal operating temperature. Once
started, do not turn off the vehicle until
the above driving cycle is complete.
If the vehicle is still not ready for I/M testing,
you need to repeat the above driving cycle.
237
Engine Emission Control

Note:A warning tone sounds if you open the
driver door and you have not shifted the
transmission selector to park (P).
Reverse (R)
With the transmission selector in reverse (R),
your vehicle moves backward. Always come
to a complete stop before shifting into and
out of reverse (R).
Neutral (N)
With the transmission selector in neutral (N),
you can start your vehicle and it is free to
roll. Hold the brake pedal down when in this
position.
Drive (D)
Drive (D) is the normal driving position for
the best fuel economy and smoothness. Shift
the transmission selector to drive (D) to allow
your vehicle to move forward and shift
through the forward gears.
The transmission shifts to the appropriate
gear for optimum performance based on
ambient temperature, road slope, vehicle
load and your input.Automatic Return to Park
Your vehicle shifts into park (P) when your
vehicle is stationary and any of the following
occur:
• You switch the vehicle off.
• You open the driver door with your
seatbelt unlatched.
• You unlatch the driver seatbelt when the
driver door is open.
Note:Do not use automatic return to park
(P) when your vehicle is moving, except in
an emergency.
Automatic return to park (P) may not work if
the door ajar switch is malfunctioning.See an authorized dealer if any of the
following occur:
• Door ajar indicator does not illuminate
with the driver door open.
• Door ajar indicator illuminates with the
driver door closed.
• Transmission not in park message
appears with the driver door closed, after
you shift out of park (P). You unlatch the
driver seatbelt when the driver door is
open.
Stay in Neutral Mode
This mode keeps your vehicle in neutral (N)
when you switch your vehicle off. Use this
mode at an automatic car wash if you exit
your vehicle, or switch your vehicle off.
Note:Automatic return to park (P) is delayed
when your vehicle is in this mode.
Your vehicle could shift to park (P) after 30
minutes, or when the vehicle battery charge
level is low. Prolonged use of this mode can
cause the vehicle battery to run out of
charge.
260
Transmission

WHAT IS DRIVE MODE CONTROL
The system delivers a driving experience
through a suite of sophisticated electronic
vehicle systems. These systems optimize
steering, handling and powertrain response.
This provides a single location to control
multiple systems performance settings.
Changing the drive mode automatically
changes the functionality of the following
systems:
• Electronically power-assisted steering
system adjusts steering effort and feel
based on the mode you select. See
Steering (page 336).
• Electronic stability control and traction
control maintains your vehicle control in
adverse conditions or high performance
driving. See Stability Control (page 282).
• Electronic throttle control enhances the
powertrain response to your driving
inputs.
• Transmission controls optimize with shift
schedules tuned to each mode.
• AWD settings become optimized and
tuned to each mode.The system automatically tailors your vehicle
configuration for each mode you select.
Note:Not all settings, or modes, may be
available.
Note:The system has diagnostic checks that
continuously monitor the system for proper
operation. If a mode is unavailable due to a
system fault, the mode defaults to Normal.
SELECTING A DRIVE MODE
Note:Drive mode changes may not be
available when the ignition is off.
E297680E297680
Rotate the drive mode dial on the center
console to change the drive mode.
DRIVE MODES
CONSERVE
Enables efficient driving. It helps to deliver
maximum fuel efficiency and helps to
increase driving range.
DEEP CONDITIONS (If Equipped)
For crossing terrain that has deformable
deep, rutted surfaces such as mud, deep
sand or deep snow. Do not use on dry, hard
surfaced roads.
If your vehicle has air suspension, it raises
approximately 1.2 in (30 mm) at low speeds
for improved ground clearance.
Note:Using deep conditions mode on dry
hard surfaces could produce some vibration,
driveline bind up, and potential excessive
tire wear. This mode is for slippery and loose
surfaces.
343
Drive Mode Control

ROOF RACKS AND LOAD
CARRIERS
WARNING: When loading the roof
racks, we recommend you evenly distribute
the load, as well as maintain a low center
of gravity. Loaded vehicles, with higher
centers of gravity, may handle differently
than unloaded vehicles. Take extra
precautions, such as slower speeds and
increased stopping distance, when driving
a heavily loaded vehicle.For correct roof rack system function, you
must place loads directly on crossbars affixed
to the roof rack side rails. When using the
roof rack system, we recommend you use
Ford Genuine Accessory crossbars designed
specifically for your vehicle.
E291748
Make sure that you securely fasten the load.
Check the tightness of the load before
driving and at each fuel stop.
Note: Never place loads directly on the roof
panel. The roof panel is not designed to
directly carry a load.
Maximum Recommended Load
Amounts
(If Equipped)
Note:The maximum recommended load is
based on the load being evenly distributed
on the crossbars.
Maximum Recommended Load Description
82 lb (37 kg) Vehicles with Moonroof
165 lb (75 kg) Vehicles without Moonroof
347
Load Carrying

Trailer Lamps
WARNING: Never connect any trailer
lamp wiring to the vehicle's tail lamp wiring;
this may damage the electrical system
resulting in fire. Contact your authorized
dealer as soon as possible for assistance
in proper trailer tow wiring installation.
Additional electrical equipment may be
required.
Most towed vehicles require trailer lamps.
Make sure all running lights, brake lights,
direction indicators and hazard flashers are
working.
Before Towing a Trailer
Practice turning, stopping and backing up to
get the feel of your vehicle-trailer
combination before starting on a trip. When
turning, make wider turns so the trailer
wheels clear curbs and other obstacles.
When Towing a Trailer
• Do not drive faster than 70 mph
(113 km/h) during the first 500 mi
(800 km).
• Do not make full-throttle starts.
• Check your hitch, electrical connections
and trailer wheel lug nuts thoroughly after
you have traveled 50 mi (80 km).
• When stopped in congested or heavy
traffic during hot weather, place the
gearshift in park (P) to aid engine and
transmission cooling and to help A/C
performance.
• Turn off the speed control with heavy
loads or in hilly terrain. The speed control
may turn off automatically when you are
towing on long, steep grades.
• Shift to a lower gear when driving down
a long or steep hill. Do not apply the
brakes continuously, as they may
overheat and become less effective.• If your transmission is equipped with a
Grade Assist or Tow/Haul feature, use
this feature when towing. This provides
engine braking and helps eliminate
excessive transmission shifting for
optimum fuel economy and transmission
cooling.
• Allow more distance for stopping with a
trailer attached. Anticipate stops and
brake gradually.
• Avoid parking on a grade. However, if
you must park on a grade:
1. Turn the steering wheel to point your
vehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission in park
(P).
4. Place wheel chocks in front and back of
the trailer wheels. (Chocks not included
with vehicle.)
Launching or Retrieving a Boat or
Personal Watercraft (PWC)
Note:Disconnect the wiring to the trailer
before backing the trailer into the water.
358
Towing

REDUCED ENGINE PERFORMANCE
WARNING: If you continue to drive
your vehicle when the engine is
overheating, the engine could stop without
warning. Failure to follow this instruction
could result in the loss of control of your
vehicle.
If the engine coolant temperature gauge
needle moves to the upper limit position, the
engine is overheating. See Gauges (page
128).
You must only drive your vehicle for a short
distance if the engine overheats. The
distance you can travel depends on ambient
temperature, vehicle load and terrain. The
engine continues to operate with limited
power for a short period of time.
If the engine temperature continues to rise,
the fuel supply to the engine reduces. The
air conditioning switches off and the engine
cooling fan operates continually.1. Gradually reduce your speed and stop
your vehicle as soon as it is safe to do
so.
2. Immediately switch the engine off to
prevent severe engine damage.
3. Wait for the engine to cool down.
4. Check the coolant level. See Engine
Coolant Check (page 404).
5. Have your vehicle checked as soon as
possible.
COLD WEATHER PRECAUTIONS
The functional operation of some
components and systems can be affected at
temperatures below approximately -13°F
(-25°C).
BREAKING-IN
You need to break in new tires for
approximately 300 mi (480 km). During this
time, your vehicle may exhibit some unusual
driving characteristics.
DRIVING ECONOMICALLY
The following helps to improve fuel
consumption:
• Drive smoothly, accelerate gently and
anticipate the road ahead to avoid heavy
braking.
• Regularly check your tire pressures and
make sure that they are inflated to the
correct pressure.
• Follow the recommended maintenance
schedule and carry out the
recommended checks.
• Plan your journey and check the traffic
before you set off. It is more efficient to
combine errands into a single trip
whenever possible.
• Avoid idling the engine in cold weather
or for extended periods. Start the engine
only when you are ready to set off.
• Do not carry unnecessary weight in your
vehicle as extra weight wastes fuel.
361
Driving Hints

ROADSIDE ASSISTANCE
Vehicles sold in the United States:
Getting Roadside Assistance
To fully assist you should you have a vehicle
concern, Lincoln offers a complimentary
roadside assistance program. This program
is separate from the New Vehicle Limited
Warranty.
The service is available:
• Throughout the life of the vehicle for
original owners.
• For six years or 70,000 mi (110,000 km)
(whichever comes first) for subsequent
owners.
Roadside Assistance covers:
• A flat tire change with a good spare
(except vehicles supplied with a tire
inflation kit).
• Battery jump start.
• Lock-out assistance (key replacement
cost is the client's responsibility).• Fuel delivery — independent service
contractors, if not prohibited by state,
local or municipal law shall deliver up to
2 gal (8 L) of gasoline fuel to a disabled
vehicle. Roadside Assistance limits fuel
delivery service to two no-charge
occurrences within a 12-month period.
• Winch out — available within 100 ft (30 m)
of a paved or county maintained road,
no recoveries.• Towing — independent service
contractors, if not prohibited by state,
local or municipal law shall tow Lincoln
eligible vehicles to the client's selling or
preferred dealer within 100 mi (160 km)
of the disablement location or to the
nearest Lincoln dealer. If a client requests
a tow to a selling or preferred dealer that
is more than 100 mi (160 km) from the
disablement location, the client is
responsible for any mileage costs in
excess of 100 mi (160 km).
• Roadside Assistance includes up to $200
for a towed trailer if the disabled eligible
vehicle requires service at the nearest
authorized dealer. If the towing vehicle
is operational but the trailer is not, then
the trailer does not qualify for any
roadside services.
Vehicles Sold in the United States:
Using Roadside Assistance
United States clients who require roadside
assistance, call 1-800-521-4140 or contact
Roadside Assistance using the Lincoln Way
mobile app.
364
Roadside Emergencies

If you need to arrange roadside assistance
for yourself, Lincoln reimburses a reasonable
amount for towing to the nearest Lincoln
dealership within 100 mi (160 km). To obtain
reimbursement information, United States
clients, call 1-800-521-4140. Clients need to
submit their original receipts.
Vehicles Sold in Canada: Getting
Roadside Assistance
To fully assist you should you have a vehicle
concern, Lincoln offers a complimentary
roadside assistance program. This program
is eligible within Canada or the continental
United States.
The service is available 24 hours a day,
seven days a week.
This program is separate from the New
Vehicle Limited Warranty, beginning from
the original warranty start date and lasts the
life of the vehicle for the original owner.
Subsequent owners receive coverage that
is concurrent with the 6 years or 70,000 mi
(110,000 km) (whichever occurs first)
powertrain warranty coverage period.Note:Canadian roadside coverage and
benefits may differ from the U.S. coverage.
For complete program coverage details,
review your warranty guide, contact your
dealer, call us in Canada at 1-800-387-9333,
or visit our website at
www.lincolncanada.com.
If you purchased your vehicle in Canada and
require roadside assistance, please call
1-800-387-9333 or contact Roadside
Assistance using the Lincoln Way mobile
app.
Note:For quick reference, complete the
roadside assistance identification card found
in the glove compartment of your vehicle
and place it in your wallet.
HAZARD FLASHERS
Note:The hazard flashers operate when the
ignition is in any position, or if the key is not
in the ignition. If used when the vehicle is not
running, the battery loses charge. As a result,
there may be insufficient power to restart
your vehicle.
The flasher control is on the
instrument panel. Use your hazard
flashers when your vehicle is
creating a safety hazard for other motorists.
• Press the flasher control and all front and
rear direction indicators flash.
• Press the button again to switch them off.
FUEL SHUTOFF
WARNING: If your vehicle has been
involved in a crash, have the fuel system
checked. Failure to follow this instruction
could result in fire, personal injury or death.
Note:When you try to restart your vehicle
after a fuel shutoff, the vehicle makes sure
that various systems are safe to restart.
Once the vehicle determines the systems
are safe, then the vehicle allows you to
restart.
Note:In the event that your vehicle does not
restart after your third attempt, contact a
qualified technician.
365
Roadside Emergencies