2014 FORD SUPER DUTY fuel pressure

ABOUT THIS SUPPLEMENT
This supplement will acquaint you with the
Power Stroke diesel engine. It provides
recommendations on engine care and
operating procedures. For complete vehicle
information, also refer to your Owner
’s
Manual included with the vehicle. It also
describes equipment and gives
specifications for equipment that was in
effect when this guide was approved for
printing, and should be considered a
permanent part of the vehicle.
Note: Your vehicle ’s powertrain control
systems can detect and store information
about vehicle modifications that increase
horsepower and torque output such as
whether or not performance-enhancing
powertrain components commonly referred
to as performance chips have been used.
This information will stay in the system ’s
memory cannot be erased even if the
modification is removed. Ford Motor
Company, Ford of Canada, Ford of Mexico
and service or repair facilities can retrieve
this information when servicing your vehicle.
Ford Motor Company may use this
information to determine if your warranty
covers any needed repairs.
Note: Some aftermarket products may
cause severe engine/transmission and/or
exhaust system damage; refer to your
warranty information for more information.
Your new diesel engine will feel, drive and
function somewhat differently than a
gasoline engine. Therefore it is very
important that you read and thoroughly
familiarize yourself and others operating
the vehicle with this guide. A special
procedure for turning off the diesel engine
is in the Starting and Stopping the Engine
chapter, See Starting a Diesel Engine
(page 9). It is important to read and
understand this material in order to
maintain the best service life for your
engine. Ford may discontinue models or change
specifications without any notice and
without incurring obligations.
Warnings WARNING
Throughout this guide, you will find
warnings identified by the warning
symbol. Warnings remind you to be
especially careful to reduce the risk of
personal injury. Breaking-In Your Vehicle
Your vehicle does not need an extensive
break-in. Try not to drive continuously at
the same speed for the first 1000 miles
(1600 kilometers) of new vehicle
operation. Vary your speed to allow parts
to adjust themselves to other parts.
Drive your new vehicle at least 500 miles
(800 kilometers) before towing a trailer.
Make sure you use the specified engine oil.
See Technical Specifications (page 56
).
Do not add friction modifier compounds
or special break-in oils during the first few
thousand miles (kilometers) of operation,
since these additives may prevent piston
ring seating. See Engine Oil Check (page
42
).
Diesel Engine Information
The diesel engine fuel system is a
pressurized two-stage filtration system
and consists of:
• A frame-mounted Fuel and Water
Separator primary filter with an electric
fuel pump and water drain
• An engine-mounted secondary fuel
filter
• A fuel injector for each cylinder (8
total)
• A high-pressure fuel pump
3
Super Duty (TFA) Introduction

•
A high-pressure fuel rail for each
cylinder bank (2 total)
• Numerous high-pressure pipes from
the high-pressure pump to the rails,
and rails to the injectors
The fuel and water separator removes
both water and impurities from the fuel.
The engine mounted filter filters finer
impurities from the diesel fuel. The
engine-mounted fuel filter and the fuel and
water separator filter should be changed
at the recommended service interval or
when indicated by the information display
LOW FUEL PRESSURE message. Refer to
the scheduled maintenance information
in this supplement for more information.
The fuel and water separator should be
drained at regular intervals (recommended
at every oil change) or when indicated by
the information display and water in fuel
indicator light. See Fuel Quality (page
14).
Proper fuel filter maintenance and prompt
water draining when the water in fuel light
illuminates is essential to prevent injection
equipment damage. Ignoring the water in
fuel light can cause your vehicle to go into
a reduced power mode.
A frame-mounted electric fuel pump
located inside the fuel and water separator
draws fuel from the fuel tank to provide
pressurized fuel to the engine. The fuel
pump contains a pressure relief valve for
overpressure protection in the event of
restricted flow.
The fuel injection system is controlled
through the powertrain control module. Engine protection mode
Ford diesel engines are equipped with
engine protection and emission control
systems. These systems monitor critical
temperatures and pressures, and modify
engine operation accordingly. These
modified engine performance
characteristics are normal.
If these modified engine performance
characteristics persist for an extended
period and either the service engine soon
or powertrain malfunction,reduced power,
electronic throttle control light is
illuminated, have the system checked by
an authorized dealer.
Service engine soon
Powertrain malfunction, reduced
power, electronic throttle control
Lubrication system
It is important to change the engine oil at
the recommended service intervals to
maintain oil viscosity. Extending the oil and
filter change interval beyond the
recommended interval can negatively
affect engine performance, fuel economy
and engine life. See
Engine Oil Check
(page 42).
Fast start glow plug system
The diesel engine glow system consists of:
• Eight glow plugs (one per cylinder)
• Glow Plug Control Module
• Engine Coolant Temperature sensor
• Barometric pressure sensor
• Environmental temperature sensor
4
Super Duty (TFA) Introduction

The powertrain and glow plug control
modules electronically control the glow
plug system. After you switch the ignition
on the glow plug control module
immediately energizes the glow plugs. The
glow plug control module using the engine
coolant temperature, barometric pressure
sensor and environmental temperature
sensor will determine how long the glow
plugs stay energized. The required time for
the glow plugs to be energized decreases
as the coolant temperature, barometric
pressure and environmental temperature
increase.
Glow Plug
Engine and secondary cooling system
The cooling system contains a primary
cooling loop to cool the engine and
exhaust gases and a secondary cooling
loop to cool the transmission, exhaust
gases, charge air, and fuel. The coolant
serves three primary purposes: to provide
heat transfer, freeze point protection, and
corrosion protection using additives.
Vehicles with diesel engines typically are
used to carry heavy loads and accumulate
mileage rapidly. These two factors may
cause the additives in the coolant to wear
out in a shorter time. For more information
about coolant additives and coolant
change intervals See General
Maintenance Information (page 58). .
Operating the engine with insufficient
coolant or coolant additive can cause
severe engine damage
Selective catalytic reduction system
Your vehicle is equipped with a selective
catalytic reduction system designed to
reduce emission levels of nitrogen oxides
from the exhaust of your diesel engine. This
system relies on the use of diesel exhaust
fluid that you must replenish at certain intervals. Failure to maintain proper diesel
exhaust fluid levels or if the diesel exhaust
fluid becomes contaminated will result in
vehicle speed limitations or result in your
vehicle entering an idle-only mode. See
Selective Catalytic Reduction System
(page
20).
Speed control
If your vehicle speed goes outside a
predetermined range from the set speed,
the RSM (Resume) function will not reset
your vehicle speed. You will need to reset
your vehicle speed with the SET+ or SET-
button after reaching the desired speed
using the accelerator pedal.
Minor Troubleshooting Guide
If the engine won ’t crank WARNING
Battery posts, terminals and related
accessories contain lead and lead
compounds. Wash hands after
handling. Turn on the headlights. If the lights are dim,
do not go on at all or when the ignition is
turned to START the lights become dim or
go out, the battery connections may be
loose or corroded, or the battery may be
discharged. If there is a clicking or
stuttering sound coming from the engine
compartment when you turn the key to
START, this may also indicate a loose or
corroded battery connection.
Check the battery connections at the
battery posts, cable connection to the
engine grounding point and at the starter
connection.
If you suspect a discharged battery, have
it checked and corrected.
5
Super Duty (TFA) Introduction

•
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

Biodiesel
WARNING
Do not use home heating oil,
agricultural fuel, raw fats and oils,
waste cooking greases, biodiesel
fuels greater than 20% or any diesel fuel
not intended for highway use. Damage to
the fuel injection system, engine and
exhaust catalyst can occur if an improper
fuel is used. Do not add gasoline, gasohol
or alcohol to diesel fuel. This practice
creates a serious fire hazard and engine
performance problems. You may operate your vehicle on diesel
fuels containing up to 20% biodiesel, also
known as B20.
Biodiesel fuel is a chemically converted
product from renewable fuel sources, such
as vegetable oils, animal fats and waste
cooking greases.
To help achieve acceptable engine
performance and durability when using
biodiesel in your vehicle:
•
Confirm the biodiesel content of the
fuel to be B20 (20% biodiesel) or less
• Only use biodiesel fuel of good quality
that complies with industry standards
• Follow the recommended service
maintenance intervals. See General
Maintenance Information (page 58).
• Do not store biodiesel fuel in the fuel
tank for more than 1 month
• Consider changing brands or reducing
biodiesel content if you have cold
temperature fuel gelling issues or a
frequent LOW FUEL PRESSURE
message appearing
• Do NOT use raw oils, fats or waste
cooking greases Use of biodiesel in concentrations greater
than 20% may cause damage to your
vehicle, including engine and/or exhaust
after-treatment hardware (exhaust
catalyst and particulate filter) failures.
Concentrations greater than 20% can also
cause fuel filter restrictions that may result
in a lack of power or damage to fuel
system components, including fuel pump
and fuel injector failures.
SAE 5W-40 or SAE 15W-40 oil is
recommended for fuels with greater than
5% biodiesel (B5). Refer to the Special
operating conditions section under the
Schedule Maintenance chapter for more
information about oil change intervals and
other maintenance when operating on
biodiesel.
Look for a label on the fuel pump to
confirm the amount of biodiesel contained
in a diesel fuel. Biodiesel content is often
indicated with the letter B followed by the
percent of biodiesel in the fuel. For
example, B20 indicates a fuel containing
20% biodiesel. Ask the service station
attendant to confirm the biodiesel content
of a diesel fuel if you do not see a label on
the fuel pump.
Biodiesel fuels degrade more easily than
diesel fuels not containing biodiesel and
should not be stored in the fuel tank for
more than 1 month. If you plan to park or
store your vehicle for more than 1 month,
then you should empty your vehicle fuel
tank of biodiesel fuel. You should fill the
tank with a pure petroleum-based diesel
fuel and run your vehicle for a minimum of
30 minutes.
Note:
Degraded or oxidized biodiesel can
damage fuel system seals and plastics and
corrode steel parts.
During cold weather, if you have problems
operating on biodiesel, you may need to
use a diesel fuel with lower biodiesel
content, try another brand, or discontinue
the use of biodiesel.
15
Super Duty (TFA) Fuel and Refueling

3.
Rotate the drain counterclockwise until
the O-ring is visible. Allow the diesel
fuel conditioner module to drain for
approximately 25 seconds or until
clean fuel is observed. Rotate the drain
clockwise to tighten it. If no liquid
drains, there may be a clog in the drain.
Have the conditioner module serviced
by an authorized dealer.
4. Make sure that you fully tighten the drain valve and then remove the
container from under your vehicle.
5. Restart the engine. If the WATER IN FUEL DRAIN FILTER or WATER IN FUEL
DRAIN FILTER SEE MANUAL message
and light continues to illuminate, have
the fuel system checked and repaired.
Low Fuel Pressure
The engine is equipped with a low fuel
pressure detection system. Here are some
possible causes if a low fuel pressure
message appears in the information
display:
• Cold start or during cold operation
(below 32°F (0°C): If the low fuel
pressure message appears during a
cold start or up to 10 minutes after the
initial cold start, monitor the
information display. If the low fuel
pressure message disappears and does
not re-appear after the engine has fully
warmed up, waxed or gelled fuel is what most likely caused the message.
Do not use alcohol based additives to
correct fuel gelling. This may result in
damage to the fuel injectors and
systems. Use an anti-gel additive. See
Technical Specifications (page 56).
Note: Your customer warranty may be void
from using additives that do not meet or
exceed Ford specifications. If the low fuel
pressure message persistently appears after
re-fueling during the cold start and cold
operation conditions defined previously and
then disappear when the engine has fully
warmed up, consider different fuel sources.
• Low fuel operation: If the low fuel
pressure message appears when your
vehicle is warm and during low fuel
tank level operation (near empty),
refuel your vehicle. If the message
reappears after fueling, see below. If
the message does not come back, the
low fuel pressure condition was due to
low fuel levels in the fuel tank.
• Normal operation: If the low fuel
pressure message appears during
normal operation when the engine is
fully warm, and fuel level is not low,
you must change the fuel filters
regardless of the maintenance
schedule interval.
• If replacement of the fuel filter does
not remedy the low fuel pressure
message during normal operation as
defined above, take the vehicle to an
authorized dealer.
Changing the Engine-Mounted and
Diesel Fuel Conditioner Module Fuel
Filters
Your vehicle is equipped with two fuel
filters. The first filter mounts on top of the
engine on the driver ’s side. The second
filter, inside the diesel fuel conditioner
module, is mounted on the frame rail under
the driver ’s side floorboard near the
transmission. You should replace both
17
Super Duty (TFA) Fuel and RefuelingE163360

Note:
The engine will not run properly if you
do not install the diesel fuel conditioner
module fuel filter in the housing or if the
filter bowl is not tightened to the
mechanical stop.
Note: You will need to purge the system of
air after removal or changing of the filter.
See purging air from the fuel system later
in this chapter.
Removal - Engine-mounted fuel filter
The engine-mounted fuel filter is a plastic
disposable cartridge. To remove it, do the
following: 1.
Disconnect both fuel lines by squeezing
the connector tabs and pulling the lines
straight off. Note:
Although the fuel system is not fully
pressurized when the vehicle is off, some
residual pressure may remain in the fuel
system since it can take some time for the
pressure to completely bleed off. Therefore,
we recommend you place a shop rag below
the filter connectors to absorb the small
amount of fuel that will drain.
2. Rotate the filter fully counterclockwise
until the peg is at the far end of the slot.
3. Pull the filter straight up from the bracket and discard the filter.
Installation – Engine-mounted fuel
filter
1. Install the new filter into the filter bracket. Turn the filter clockwise to
lock it in place.
2. Reconnect both fuel lines.
Note: Using a fuel that has more than
average impurities may require you to
replace the fuel filter more frequently than
the service interval specifies.
Note: You will need to purge the system of
air after removal or changing of the filter.
See purging air from the fuel system later
in this chapter.
Purging air from the fuel system
Turn the ignition key to on for 30 seconds,
then turn it to off. Do this six times in a row
to purge any trapped air from the fuel
system.
After filter service, a no start or rough
running engine may indicate that air is
entering the system through the filter bowl
seal or drain. Make sure the drain is tight
and you tightened the filter bowl to the
mechanical stop.
19
Super Duty (TFA) Fuel and RefuelingE163363 E163364