
The glow plug system is
electronically controlled by the PCM
and GPCM. The GPCM energizes the
glow plugs immediately after the ignition is turned on and kept on as
determined by the GPCM using the ECT, BARO and environmental
temperature sensor. The required time for the glow plugs to be
energized decreases as the coolant temperature, barometric pressure and
environmental temperature increase.
Engine and secondary cooling system
The cooling system contains an engine cooling loop to cool the engine
and a secondary cooling loop to cool the transmission, exhaust gas
recirculation (EGR), 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. Refer to theSpecial
operating conditionssection for more information about coolant
additives and coolant change intervals. Operating the engine with
insufficient coolant and/or coolant additive can cause severe engine
damage.
Selective catalytic reduction (SCR) system
Your vehicle is equipped with a selective catalytic reduction (SCR)
system to help reduce emission levels of oxides of nitrogen from the
exhaust of the diesel engine. This system relies on the use of diesel
exhaust fluid (DEF) which must be replenished at certain intervals.
Failure to maintain proper DEF levels or if the DEF becomes
contaminated will result in vehicle speed limitations and/or result in the
vehicle entering an idle-only mode. SeeSelective catalytic reduction
(SCR) systemin theFuel and Refuelingchapter for more information.
Speed control (if equipped)
If vehicle speed goes outside a predetermined range from the set speed,
the RES (Resume) function will not reset vehicle speed. Vehicle speed
will need to be reset with the SET +/- button after reaching desired
speed using accelerator pedal.
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In cold weather below 32°F (0°C), the engine may slowly increase to a
higher idle speed if left idling in P (Park). As the engine warms-up, the
engine sound level decreases due to the activation of PCM-controlled
sound reduction features.
If your vehicle is operated in a heavy snow storm or blowing snow
conditions, the engine air induction may become partially clogged with
snow and/or ice. If this occurs, the engine may experience a significant
reduction in power output. At the earliest opportunity, clear all the snow
and/or ice away from inside the air filter assembly. Remove the air
cleaner cover and the pleated paper filter, leaving the foam filter in and
remove any snow or ice. Make sure the foam filter is installed correctly
in place. Remove any debris, snow and/or ice on the foam filter by
brushing the surface with soft brush. Do not use water, solvents, or a
hard brush for cleaning the foam filter.
In order to operate the engine in temperatures of 32°F (0°C) or lower,
read the following instructions:
•Make sure that the batteries are of sufficient size and are fully
charged. Check other electrical components to make sure they are in
optimum condition.
•Use the proper coolant solution at the concentration recommended to
protect the engine against damage from freezing.
•Try to keep the fuel tank full as much as possible at the end of
operation to prevent condensation in the fuel system.
•Make sure you use proper cold weather engine oil and that it is at its
proper level. Also, if necessary, make sure to follow the engine oil and
filter change schedule found under theSpecial operating conditions
section listed in thescheduled maintenance information.
•At temperatures of -10°F (-23°C) or below, it is recommended that
you use an engine block heater to improve cold engine starting.
•If operating in arctic temperatures of -20°F (-29°C) or lower, consult
your truck dealer for information about special cold weather
equipment and precautions.
The following cold weather idling guidelines are recommended:
•Motorcraft® cetane improvers or non-alcohol-based cetane improvers
from a reputable manufacturer may be used as needed.
•Maintain the engine cooling system properly.
•Avoid shutting the engine down after an extensive idling period. Drive
the vehicle for several miles with the engine at normal operating
temperatures under a moderate load.
•Consider using an engine block heater.
•For extended idle times use an approved idle speed increase device.
Starting and Stopping the Engine
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SCHEDULED MAINTENANCE
The scheduled maintenance services in thescheduled maintenance
informationof this supplement are required because they are
considered essential to the life and performance of your vehicle.
Use only recommended fuel, lubricants, fluids and service parts
conforming to Ford specifications. Motorcraft® parts are designed and
built for best performance in your vehicle.
ENGINE OIL
Checking the engine oil level
Because it is normal to add some oil between oil changes, check your
engine oil level each time you stop for fuel. To check the engine oil level
consistently and accurately, the following procedure is recommended:
1. Have engine at normal operating temperature (at least into the
NORMAL range on the engine coolant temperature gauge).
2. Park the vehicle on a level surface, then turn off the engine and open
the hood.
3. Allow at least20 minutesafter engine shutdown to ensure that the oil
contained in the upper parts of the engine has returned to the oil pan.
4. Protecting yourself from engine heat, pull out the dipstick, wipe it
clean and reinsert fully.
5. Read oil level on both sides of dipstick and use highest level (reading)
for the actual engine oil level.
6. Maintain the oil level within the
crosshatch area on the dipstick by
adding oil as required. Do not
overfill the oil past the maximum
line as depicted by the arrow.
Engine oil specifications
It is important that only quality engine oils are used in your diesel engine
and it is changed at the recommended service interval. For normal or
severe service, use Motorcraft® oil or an equivalent oil conforming to
Ford specifications or API service categories CJ-4 as listed in the
Capacities and Specificationschapter. It is important to use the
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•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 AND SECONDARY COOLING SYSTEM COOLANT
Checking the engine coolant
The concentration, additive strength and level of coolant should be
checked at the mileage intervals listed in thescheduled maintenance
information.Be sure to read and understandPrecautions when
servicing your vehiclein yourOwner’s Manual.
When the engine is cold, check the level of coolant in the reservoirs. See
Under Hood Overviewfor the location of the engine and secondary
cooling system reservoirs. If the coolant has not been checked at the
recommended interval, the engine or secondary coolant reservoir may
become low or empty. If either reservoir is low or empty, add coolant to
the reservoir(s). Refer toEngine and secondary cooling system refill
procedurein this chapter.
Note:The engine coolant should be between the MIN and MAX marks
(within the COLD FILL RANGE), as listed on the engine coolant reservoirs.
Note:Coolant expands when it is hot. The level may extend beyond the
MAX mark.
If the level is below the MIN mark, add engine coolant immediately see
Adding coolantin this chapter.
Note:For best results, 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.
The coolant concentration should be maintained within 48% to 50%,
which equates to a freeze point between -30 °F and -34 °F.
Note:Automotive fluids are not interchangeable; do not use engine
coolant/antifreeze or windshield washer fluid outside of its specified
function and vehicle location.
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•Do not use alcohol, methanol or brine or any engine coolants mixed
with alcohol or methanol antifreeze (coolant). Alcohol and other
liquids can cause engine damage from overheating or freezing.
•Do not add extra inhibitors or unapproved additives to the coolant.
These can be harmful and compromise the corrosion protection of the
engine coolant.
Add prediluted engine coolant meeting the Ford specification
(Motorcraft® Orange Antifreeze/Coolant Prediluted). SeeCapacities
and Specificationsfor more information. Note: Generic coolants for all
makes and models may not meet the Ford specification and may cause
damage to the cooling system. This damage may void the warranty.
For vehicles with overflow coolant systems with a non-pressurized cap
on the coolant recovery system, add coolant to the coolant recovery
reservoir when the engine is cool. Add prediluted engine coolant
(Motorcraft® Orange Antifreeze/Coolant Prediluted) to the FULL COLD
level. For all other vehicles which have a coolant degas system with a
pressurized cap, or if it is necessary to remove the coolant pressure
relief cap on the radiator of a vehicle with an overflow system, follow
these steps to add engine coolant.
1. Turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the coolant reservoir (a translucent plastic bottle).
Slowly turn cap counterclockwise until pressure begins to release.
3. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
4. Fill the coolant reservoir slowly with prediluted engine coolant to
within the FULL COLD level, or between the MIN and MAX marks
(within the COLD FILL RANGE), as listed on the engine coolant
reservoir. If you removed the radiator cap in an overflow system, fill the
radiator until the coolant is visible and radiator is almost full. If coolant is
added to bring the level within the COLD FILL RANGE when the engine
is not cold, the system may remain under filled.
5. Replace the cap. Turn until tightly installed. Cap must be tightly
installed to prevent coolant loss.
Whenever coolant has been added, the coolant level in the coolant
reservoir should be checked the next few times you drive the vehicle. If
necessary, add enough prediluted engine coolant to bring the coolant
level to the proper level.
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If you have to add more than 1.0 quart (1.0 liter) of engine coolant per
month, have your authorized dealer check the engine cooling system.
Your cooling system may have a leak. Operating an engine with a low level
of coolant can result in engine overheating and possible engine damage.
Engine and secondary cooling system refill procedure
The following procedure should be used when refilling the engine or
secondary cooling systems after it has been drained or become extremely
low.
1. Before you remove the cap, turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the cap. Slowly
turn cap counterclockwise until pressure begins to release.
3. Step back while the pressure releases.
4. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
5. Slowly add prediluted engine coolant to the coolant reservoir until the
coolant level is within the COLD FILL RANGE as listed on the reservoir.
6. Reinstall the pressure relief cap.
7. Start and run the engine at 2,000 rpm for 2 minutes.
8. Shut engine off, and remove the pressure relief cap as previously
outlined.
9. If required, add prediluted engine coolant to the coolant reservoir until
the coolant level is within the COLD FILL RANGE as listed on the
reservoir.
10. Engine cooling system: Repeat Step 5 until the coolant level has
stabilized (is no longer dropping after each step) AND the upper radiator
hose at the radiator is warm to the touch (indicating that the engine
thermostat is open and coolant is flowing through the radiator).
Secondary cooling system: Repeat Step 5 until the coolant level has
stabilized (is no longer dropping after each step) AND the lower
passenger side of the secondary radiator is warm to the touch
(indicating secondary thermostat is open and coolant is flowing
through the entire system).
11. Reinstall the pressure relief cap. Shut the engine off and let it cool.
12. Check the coolant level in the reservoir before you drive your vehicle
the next few times (with the engine cool).
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13. If necessary, add prediluted engine coolant to the coolant reservoir
until the coolant level is within the COLD FILL RANGE as listed on the
reservoir. After any coolant has been added, check the coolant
concentration. SeeEngine and secondary cooling system coolant
earlier in the chapter for more information.
Whenever coolant has been added, the coolant level in the reservoir
should be checked the next few times you drive the vehicle. If needed,
add prediluted engine coolant to bring the coolant to the proper level.
Recycled engine coolant
Ford Motor Company does not recommend the use of recycled engine
coolant since a Ford-approved recycling process is not yet available.
Always dispose of used automotive fluids in a responsible manner. Follow
your community’s regulations and standards for recycling and disposing
of automotive fluids.
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
to theCapacities and Specificationschapter.
Severe climates
If you drive in extremely cold climates:
•It may be necessary to have a Ford authorized dealer increase the
coolant concentration above 50%.
•A coolant concentration of 60% will provide improved freeze point
protection. Engine coolant concentrations above 60% will decrease the
overheat protection characteristics of the engine coolant and may
cause engine damage.
If you drive in extremely hot climates:
•It may be necessary to have a Ford authorized dealer decrease the
coolant concentration to 40%.
•A coolant concentration of 40% will provide improved overheat
protection. Engine coolant concentrations below 40% will decrease the
corrosion/freeze protection characteristics of the engine coolant and
may cause engine damage.
Vehicles driven year-round in non-extreme climates should use
prediluted engine coolant for optimum cooling system and engine
protection.
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Checking coolant corrosion inhibitor additive strength
At specific mileage intervals of 15,000 miles (24,000 km), as listed in the
scheduled maintenance informationchapter, the coolant corrosion
inhibitor additive should be checked. The optional information display, if
equipped, will also display the messageCHECK COOLANT ADDITIVE
at this time. The purpose of checking is to verify the correct engine
coolant concentration (freeze point protection) and corrosion inhibitor
additive level (strength) of the coolant for maximum engine performance
and protection. Three products are available for ensuring the life and
health of the coolant: one tool, a test kit and a coolant inhibitor additive:
•Rotunda tool 300–ROB75240 available from your dealer –
recommended refractometer to test coolant concentration.
•
Rotunda 328-R071–ELC (Antifreeze Coolant ELC Contamination Kit) –
Evaluates the corrosion inhibitor additive strength. Note the first step is
to verify the vehicle’s coolant concentration is in the correct range of 40
– 60%. Coolant concentrations outside this range will not provide valid
test results. If the report results in a pass (i.e., the cooling system does
not show excessive contamination/the corrosion inhibitor additive
strength is sufficient), no action is required. If the report results as
insufficient (does not pass), the corrosion inhibitor additive strength of
the coolant is too low. If the ENGINE COOLING SYSTEM corrosion
inhibitor additive strength is low, add 48 fluid oz. of Motorcraft®
Specialty Orange Engine Coolant Revitalizer. If the SECONDARY
COOLING SYSTEM corrosion inhibitor additive strength is low, add 16
fluid oz. of Motorcraft® Specialty Orange Engine Coolant Revitalizer.
•Motorcraft® Specialty Orange Engine Coolant Revitalizer – Additive to
boost the corrosion inhibitor level based upon the test results of the
Antifreeze Coolant ELC Contamination Kit. The Revitalizer may be
added two times over the life of the coolant. If additional dosages are
required, the cooling system must be flushed and refilled per the
instructions in the Workshop Manual.
Refer to theCapacities and Specificationschapter for the proper
coolant and additive specifications.
Coolant change
At specific mileage intervals, as listed in thescheduled maintenance
information,the coolant should be changed. The optional information
display, if equipped, will also display the messageCOOLANT CHANGE
REQUIREDat this time.
Refer to theCapacities and Specificationschapter for the proper coolant.
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