ENGINE AND SECONDARY COOLING SYSTEM COOLANT
Checking engine coolant
The concentration, additive strength and level of coolant should be
checked at the mileage intervals listed in thescheduled maintenance
information.The coolant concentration should be maintained at 50/50
coolant and water. For best results, coolant concentration should be
tested with a refractometer such as Rotunda tool 300-ROB75240E
available from your dealer. Ford does not recommend the use of
hydrometers or coolant test strips for measuring coolant concentration.
The level of coolant should be maintained within the COLD FILL RANGE
in the coolant reservoirs. If the level falls below, add coolant per the
instructions in theAdding coolantsection.
Your vehicle was factory-filled with a 50/50 coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.A
50/50 mixture of coolant and water provides the following:
•Improved freeze protection.
•Improved boiling protection.
•Protection against rust and other forms of corrosion.
•Enables calibrated gauges to work properly.
When the engine is cold, check the level of coolant in the reservoirs. See
Identifying components in the engine compartmentfor the location of
the engine and secondary cooling system reservoirs.
•The coolant should be within the COLD FILL RANGE in the coolant
reservoirs.
•Refer to thescheduled maintenance informationfor service interval
schedules.
•Be sure to read and understandPrecautions when servicing your
vehiclein yourOwner’s Guide.
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 to
Engine and secondary cooling system refill procedurein this chapter.
Note:Automotive fluids are not interchangeable; do not use engine
coolant or windshield washer fluid outside of its specified function and
vehicle location.
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Adding coolant
When adding coolant, make sure it is a 50/50 mixture of coolant and
distilled water. Add the mixture to the coolant reservoir(s),when the
engine is cool, until the appropriate fill level is obtained.
If you have to add more than 1.0 quart (1.0 liter) of coolant per month,
have your dealer check the 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.
Note:If coolant is added to bring the level within the COLD FILL
RANGE when the engine is not cold, the system will remain underfilled.
WARNING:Do not add 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.
WARNING:Do not put coolant in the windshield washer fluid
container. If sprayed on the windshield, coolant could make it
difficult to see through the windshield.
•DO NOT MIX different colors or types of coolant in your
vehicle. Make sure the correct coolant is used.Refer to
Maintenance product specifications and capacitiesin this chapter
for the proper coolant type.
•The use of an improper coolant may harm engine and cooling
system components and may void the warranty.Refer to
Maintenance product specifications and capacitiesin this chapter
for the proper coolant type.
Note:Do not use stop leak pellets or cooling system sealants/additives
as they can cause damage to the engine cooling and/or heating systems.
This damage would not be covered under your vehicle’s warranty.
•A large amount of water without engine coolant may be added to the
engine cooling system only, in case of emergency, to reach a vehicle
service location. Avoid this procedure if delivery to the service location
requires heavy engine loads. In this instance, the cooling system(s)
must be drained, chemically cleaned with MotorcraftPremium
Cooling System Flush, and refilled with a 50/50 mixture of coolant and
distilled water as soon as possible. Water alone (without coolant) can
cause damage from corrosion, overheating or freezing.DO NOTuse
this method for the secondary cooling system. The secondary cooling
system operates close to ambient temperature, and is susceptible to
freezing in any subfreezing environment, in the absence of coolant.
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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).
13. If necessary, add a 50/50 mixture of coolant and distilled water 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
coolantearlier. If the concentration is not 50/50, drain some coolant and
adjust the concentration. It may take several drains and additions to
obtain a 50/50 coolant concentration.
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 a
50/50 concentration of coolant and distilled water to the proper level.
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
toMaintenance product specifications and capacitiesin this chapter.
Coolant additives
At specific mileage intervals of 15,000 miles (24,000 km), as listed in the
scheduled maintenance informationchapter, the coolant additive
should be checked. The optional message center, if equipped, will also
display the messageCHECK COOLANT ADDITIVEat this time. The
purpose of checking is to verify the correct concentration (freeze point
protection) and additive strength (corrosion inhibitor) levels of the
coolant for maximum engine performance and protection. Three
products are available for ensuring the life and health of the coolant: two
test kits and a coolant inhibitor additive:
•Rotunda 328-00007 (Matthew’s Water CoolCheck) – Evaluates water
quality (hardness, chloride, and pH) for 50/50 mixture of coolant and
distilled water. Use distilled water. If distilled water is unavailable,
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AIR FILTER RESTRICTION GAUGE AND AIR FILTER
REPLACEMENT
Air filter restriction gauge:
The restriction gauge, located on
the upper housing of the air filter
assembly, measures the vacuum
inside the air filter. The more the air
filter is restricted (dirty, clogged),
the higher the vacuum reading
Check the air filter restriction gauge
whenever the hood is raised to
perform general engine maintenance
at least every 7,500 miles (12,000 km). If the vehicle is operated in
extremely dusty conditions, check and reset the gauge at least every
500 miles (800 km), or two weeks, whichever comes first.
Change the air filter when the gauge reads near the “change filter” line
and the chamber is filled with yellow. Engine performance and fuel
economy are adversely affected when the maximum restriction is
reached.
Blowing-out the air filter element with compressed air is not
recommended as the compressed air may damage the filter paper.
Note:It is not possible to determine the level of filter clogging by visual
appearance alone. A filter which appears to be dirty may actually have
several thousand miles (kilometers) of life remaining.
Use the underhood air filter restriction gauge to determine when
the air filter element needs to be changed.
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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 lbs. (4,536 kg) GVWR (Gross
Vehicle Weight Rating). The following 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 lbs. (4,536 kg) GVWR.
Tampering with noise control system prohibited
Federal law prohibits the following acts or the causing thereof: (1) The
removal or rendering inoperative by any person other than for purposes
of maintenance, repair or replacement of any device or element of design
incorporated into any new vehicle for the purpose of noise control prior
to its sale or delivery to the ultimate purchaser or while it is in use, or
(2) the use of the vehicle after such device or element of design has
been removed or rendered inoperative by any person.
Among those acts which the U.S. Environmental Protection Agency may
presume to constitute tampering are the acts listed below:
•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, so as
to allow engine speed to exceed manufacturer’s specifications.
The complexity of the diesel engine makes it so the owner is discouraged
from attempting to perform maintenance other than the services
described in this supplement.
If you experience difficult starting, rough idling, excessive exhaust
smoke, a decrease in engine performance or excess fuel consumption,
perform the following checks:
•a plugged or disconnected air inlet system or engine air filter element.
•water in the fuel filter/water separator.
•a clogged fuel filter.
•contaminated fuel.
•air in the fuel system, due to loose connections.
•an open or pinched sensor hose.
•check engine oil level.
•wrong fuel or oil viscosity for climactic conditions.
If these checks do not help you correct the engine performance problem
you are experiencing, consult an authorized dealer.
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FUELING
WARNING:Do not use starting fluid such as ether or gasoline
in the diesel air intake system. Such fluids can cause immediate
explosive damage to the engine and possible personal injury.
If you fuel your vehicle at a truck stop, you may notice that the fuel
nozzle may shut off every 5–10 seconds. This is due to the flow rates
being designed for larger heavy duty trucks. You may have to fuel at a
slower rate (don’t depress the nozzle trigger fully).
Do not run your diesel vehicle out of fuel as this will allow air to enter
the fuel system which will make restarting difficult. Longer engine
cranking time may be required once air is in the fuel system. If air enters
the fuel system (either through running the fuel tank(s) empty or during
a fuel filter change), the engine will self-purge the trapped air once it
starts running. The engine may run roughly and produce white smoke
while air is in the fuel system; this is normal and should stop after a
short time.
MINOR TROUBLESHOOTING GUIDE
Air purge procedure
Turn the key on for 30 seconds, then turn off. Repeat the procedure six
times.
If the engine won’t crank
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 a discharged battery is suspected, have it checked and corrected.
WARNING:Battery posts, terminals and related accessories
contain lead and lead compounds.Wash hands after handling.
•The gearshift lever must be in P (Park) or N (Neutral) in order for
the starter to operate.
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•Try operating the starter switch several times. Should the switch be
corroded, this operation may clean the 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 toJump startingin theRoadside Emergencieschapter of your
Owner’s Guide.
If engine cranks but won’t start
Prolonged starter cranking (in excess of 10 seconds) could cause
damage to the starter motor.
•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 the 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.
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.
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If fuses burn out
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.
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.
Refer to theOwner’s Guidefor replacement of fuses.
Selective catalytic reduction (SCR) system speed limit and
Idle-only modes
If the vehicle’s speed is limited or in an idle-only mode, the SCR system
may be limiting the vehicle’s functions due to low or contaminated diesel
exhaust fluid (DEF). Check the DEF. SeeSelective catalytic reduction
(SCR) systemin theMaintenance and Specificationschapter for more
information.
MOTORCRAFTPART NUMBERS
Item Ford Part Number
Engine oil filter FL-2051
Foam pre-filter FA-1907
* Air filter FA-1902
Fuel filter kit (2 included - engine
and frame rail mounted )FD-4615
Battery (2 Required) BXT-65-750
* Always use the authorized Motorcraftair filter or an equivalent
replacement part.Failure to use the correct air filter may result
in severe engine damage.
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