
•
The gearshift lever must be in P (Park)
or N (Neutral) in order for the starter
to operate.
• Try operating the starter switch several
times. This operation may clean
potentially corroded contacts or make
the switch temporarily operable until
you can reach the dealer.
• If all electrical connections are tight
and you need assistance to start, refer
to Jump Starting in the Roadside
Emergencies chapter of your Owner ’s
Manual.
If engine cranks but won ’t start
Prolonged starter cranking (in excess of 10
seconds) could cause damage to the
starter motor or the high-pressure fuel
pump.
• Check the fuel gauge. You may be out
of fuel. If the gauge shows that there
is fuel in the tank, the trouble may be
in the electrical system or the fuel
system. If equipped with an auxiliary
tank, be sure that the tank control
switch is set for the tank with fuel and
not on an empty tank.
• Leaving your ignition key turned to on
for over two minutes without starting
may make starting difficult because
the glow plugs will cease activation.
Reset the system by turning the ignition
key to off and then back to on again.
Note: If the system is out of fuel and the
engine will not start, do not continue
cranking the engine. Continued cranking can
damage the high-pressure fuel pump.
If the engine runs hot
The following could cause the engine to
overheat:
• Lack of coolant
• Dirty cooling system. •
Plugged radiator fins, A/C condenser
and/or oil cooler
• Malfunctioning fan drive
• Driving with frozen coolant
• Sticking thermostat
• Overloading or pulling heavy trailers
during hot weather
• Grill or radiator air blockage
• Slipping or missing drive belt
• Plugged or very dirty air filter
If fuses burn out WARNING
Replacement fuses and circuit
breakers must always be the same
rating as the original equipment
shown. Never replace a fuse or circuit
breaker with one of a higher rating. Higher
rated fuses or circuit breakers could allow
circuit overloading in the event of a circuit
malfunction, resulting in severe vehicle
damage or personal injury due to fire. Burned-out or blown fuses usually indicate
an electrical short-circuit, although a fuse
may occasionally burn out from vibration.
Insert a second fuse. If this fuse
immediately burns out and you cannot
locate the cause, return your vehicle to
your dealer for a circuit check.
Refer to the Owner
’s Manual for
replacement of fuses.
Selective catalytic reduction system
speed limit and Idle-only modes
If the vehicle ’s speed is limited or in an
idle-only mode, the selective catalytic
reduction system may be limiting the
vehicle ’s functions due to low or
contaminated diesel exhaust fluid. Check
the diesel exhaust fluid. See
Selective
Catalytic Reduction System (page 20).
6
Super Duty (TFA) Introduction

STARTING A DIESEL ENGINE
Read all starting instructions carefully
before you start your vehicle.
For temperatures below 32°F (0°C), the
use of the correct grade engine oil is
essential for proper operation. Refer to
Engine oil specifications for more
information. See Technical
Specifications (page 56).
Your vehicle may be equipped 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 from being used for 30 seconds after
starting your vehicle. A message will
appear in the information display as your
vehicle warms up. By not allowing the
accelerator pedal to be used, the engine
oil is allowed to properly lubricate the
bearings preventing engine damage due
to lack of proper lubrication. After the 30
second warm-up period, the accelerator
pedal will be operational again and a
message will appear informing you the
vehicle is ok to drive.
When starting the engine in extremely cold
temperatures (-15°F [– 26°C]), it is
recommended to allow the engine to idle
for several minutes before driving the
vehicle.
Make sure the gearshift lever is in P (Park)
and the parking brake is fully set before
you turn the key. Do not press the
accelerator during starting.
Cold Weather Starting WARNINGS
Do not use starting fluid, such as
ether, in the air intake system (see
air filter decal). Such fluid could
cause immediate explosive damage to the
engine and possible personal injury WARNINGS
Do not add gasoline, gasohol, alcohol
or Kerosene to diesel fuel. This
practice creates a serious fire hazard
and causes engine performance problems. It is recommended that the engine block
heater be used for starting when the
temperature is -10°F (-23°C) or colder.
Refer to Engine block heater later in this
chapter for more information.
When operating in cold weather,
Motorcraft® cetane improvers or
non-alcohol-based cetane improvers from
a reputable manufacturer may be used 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
position 3 (off) and wait 30 seconds
before trying again.
1. Turn the key to on without turning the
key to start. Do not start the engine
until the glow-plug indicator turns off.
2. 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
turning the key to off.
3. 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.
9
Super Duty (TFA) Starting and Stopping the Engine

5.
Reset the Intelligent Oil Life Monitor™.
See the Information Displays chapter
in the Owner's Manual for more
information.
Engine lubrication for severe service
operation
The following conditions define severe
operation for which engine operation with
SAE 5W-40 API CJ-4 is recommended. Oil
and oil filter change intervals will be
determined by the Intelligent Oil Life
Monitor™ as noted previously.
• Frequent or extended idling (over 10
minutes per hour of normal driving)
• Low-speed operation/stationary use
• If vehicle is operated in sustained
ambient temperatures below -10°F
(-23°C) or above 100°F (38°C)
• Frequent low-speed operation,
consistent heavy traffic less than 25
mph (40 km/h)
• Operating in severe dust conditions
• Operating the vehicle off road
• Towing a trailer over 1,000 miles (1,600
km)
• Sustained, high-speed driving at Gross
Vehicle Weight Rating (maximum
loaded weight for vehicle operation)
• Use of fuels with sulfur content other
than ultra-low sulfur diesel (ULSD)
• Use of high-sulfur diesel fuel
ENGINE COOLANT CHECK
Checking the Engine Coolant
The concentration and level of the engine
coolant should be checked at the intervals
listed in the scheduled maintenance
information. See Scheduled
Maintenance (page 58). Note:
Make sure that the level is between
the MIN and MAX marks on the coolant
reservoirs.
Note: Coolant expands when it is hot. The
level may extend beyond the MAX mark
Note: If the level is at the MIN mark, below
the MIN mark, or empty, add coolant
immediately. See
Adding Engine Coolant
in this chapter.
Note: The coolant concentration should be
maintained within 48% to 50%, which
equates to a freeze point between -30 °F
(-34 °C) and -34 °F (-37 °C).
Note: For best results, the coolant
concentration should be tested with a
refractometer such as Rotunda tool
300-ROB75240 available from your dealer.
Ford does not recommend the use of
hydrometers or coolant test strips for
measuring coolant concentrations.
Note: Automotive fluids are not
interchangeable. Do not use engine coolant
or antifreeze or windshield washer fluid
outside of its specified function and vehicle
location.
Adding Engine Coolant WARNINGS
Do not add engine coolant when the
engine is hot. Steam and scalding
liquids released from a hot cooling
system can burn you badly. Also, you can
be burned if you spill coolant on hot engine
parts. Do not put engine coolant in the
windshield washer fluid container. If
sprayed on the windshield, engine
coolant could make it difficult to see
through the windshield.
44
Super Duty (TFA) Maintenance

Normal Maintenance Intervals
At every oil change interval as indicated by the information display
1
Change the engine oil and filter. 2
Refill the diesel exhaust fluid tank.
Rotate the tires 3
, inspect the tires for wear and measure tread depth.
Perform a multi-point inspection (recommended).
Inspect the air filter restriction gauge. Replace the filter if necessary.
Inspect the automatic transmission fluid level. Consult your dealer for requirements.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and parking brake.
Inspect the engine and secondary coolant level and hoses.
Inspect the exhaust system and heat shields.
Inspect the front axle and U-joints. Lubricate any grease fittings. (Four-wheel drive
vehicles)
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and U-joints.
Lubricate any grease fittings.
1 Do not exceed one year or 10000 miles (16000 kilometers) between service intervals.
2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
3 Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted. Other maintenance items
1
Inspect the engine and secondary cooling system
concentration (freeze-point protection), additive (corro-
sion inhibitor) strength, coolant level and hoses. 2
Every 15000 miles (24000
km)
Replace the engine-mounted and frame-mounted fuel
filters.3
Every 22500 miles (36000
km)
Replace the climate-controlled (heated and cooled) seat
filter.4
Every 30000 miles (48000
km)
Replace the air inlet foam filter.
Every 45000 miles (72000
km)
62
Super Duty (TFA) Scheduled Maintenance

Operating in sustained ambient temperatures below -10°F (-23°C) or above 100°F (38°C)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours, or as indicated by the
information display
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every 30000 miles (48000
km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Every 60000 miles (96000
km) Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Rotate the tires*
, inspect the tires for wear and measure
tread depth.
Every 7500 miles (12000
km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
Inspect the steering and suspension ball joints and tie rods.
Lubricate any grease fittings.
Change the engine oil and filter. **
Every 7500 miles (12000
km), six months or 300
engine hours Inspect and lubricate the U-joints.
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours, or as indicated by the
information display
Replace the air inlet foam filter.
Every 30000 miles (48000
km)
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
** Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
67
Super Duty (TFA) Scheduled Maintenance

Off-road operation
Inspect functional holes in each leg of the twin exhaust
tips and the holes under the shield just inboard of the right
rear tire to make sure they are clean and clear of debris or
foreign materials. Refer to the Vehicle Care chapter of your
owner ’s manual for more information.
As required
Inspect the steering and suspension ball joints and tie rods.
Lubricate any grease fittings.
Rotate the tires*
, inspect the tires for wear and measure
tread depth.
Every 7500 miles (12000
km), six months or 300
engine hours
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
Change the engine oil and filter. **
Every 7500 miles (12000
km) or 300 engine hours
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours, or as indicated by the
information display
Replace the air inlet foam filter.
Every 30000 miles (48000
km)
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles).
Change the rear axle fluid (Dana rear axles only - some F-
350s; all F-450s and F-550s).
Every 50000 miles (80000
km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Inspect the front axle fluid. (Four-wheel drive vehicles)
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
** Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
68
Super Duty (TFA) Scheduled Maintenance