UNDER HOOD OVERVIEW - 6.8L
Windshield washer fluid reservoir. See Washer Fluid Check (page 201).
A
Engine coolant reservoir. See
Engine Coolant Check (page 189).
B
Automatic transmission fluid dipstick. See
Automatic Transmission Fluid
Check (page 198).
C
Brake fluid reservoir. See
Brake Fluid Check (page 200).
D
Engine compartment fusebox. See
Fuses (page 161).
E
Power steering fluid reservoir. See
Power Steering Fluid Check (page 201).
F
Engine oil dipstick. See
Engine Oil Dipstick (page 185).
G
Engine oil filler cap. See
Engine Oil Check (page 185).
H
Air cleaner assembly. See
Changing the Engine Air Filter (page 209).
I
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UNDER HOOD OVERVIEW - 6.7L DIESEL
Windshield washer fluid reservoir. See Washer Fluid Check (page 201).
A
Secondary Cooling System Reservoir. See Engine Coolant Check (page 194).
B
Engine coolant reservoir. See
Engine Coolant Check (page 194).
C
Automatic transmission fluid dipstick. See
Automatic Transmission Fluid
Check (page 198).
D
Secondary fuel filter. See
Draining the Fuel Filter Water Trap (page 202).
E
Engine oil separator. See Changing the Engine Oil and Oil Filter (page 187).
F
Brake fluid reservoir. See
Brake Fluid Check (page 200).
G
Engine compartment fusebox. See
Fuses (page 161).
H
Power steering fluid reservoir. See
Power Steering Fluid Check (page 201).
I
Air brake compressor. See
Brake System Inspection (page 219).
J
Engine oil filler cap. See
Engine Oil Check (page 186).
K
Engine oil dipstick. See
Engine Oil Dipstick (page 185).
L
Air cleaner assembly. See
Changing the Engine Air Filter (page 210).
M
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E209131C
You may notice a reduction in vehicle
speed caused by reduced engine power.
In order to manage the engine coolant
temperature. Your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction depends on
vehicle loading, grade and ambient
temperature. If this occurs, there is no need
to pull off the road. You can continue to
drive your vehicle.
The air conditioning may automatically
turn on and off during severe operating
conditions to protect the engine from
overheating. When the coolant
temperature decreases to the normal
operating temperature, the air conditioning
turns on.
If the coolant temperature gauge moves
fully into the red zone, or if the coolant
temperature warning or service engine
soon messages appear in your information
display, do the following:
1. Pull off the road as soon as safely
possible and shift the transmission into
park (P).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. After
several minutes, if the temperature
does not drop, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue. ENGINE COOLANT CHECK -
6.7L DIESEL 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, spilling
coolant on hot engine parts can burn you. 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. To reduce the risk of personal injury,
make sure the engine is cool before
unscrewing the coolant pressure
relief cap. The cooling system is under
pressure. Steam and hot liquid can come
out forcefully when you loosen the cap
slightly. Do not add coolant further than the
MAX
mark.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 316).
Note: Make sure that the coolant level is
between the
MIN and MAX marks on the
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between -30°F (-34°C) and -34°F
(-37°C). Coolant concentration should be
checked using a refractometer. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentration.
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•
Robinair® Coolant and Battery
Refractometer 75240 –
Recommended refractometer to test
coolant concentration. (Rotunda tool
part number: ROB75240).
• 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, for example the cooling system
does not show excessive
contamination, the corrosion inhibitor
additive strength is sufficient, and 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
47 fl oz
(1.4 L) of Motorcraft Specialty Orange
Engine Coolant Revitalizer. If the
secondary cooling system corrosion
inhibitor additive strength is low, add
16 fl oz (0.47 L) 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.
Make sure to follow the proper coolant and
additive specifications. See
Capacities
and Specifications (page 252). Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. The
information display may display a message
to change coolant at this time. Add
prediluted coolant approved to the correct
specification. See
Capacities and
Specifications (page 252).
Engine-driven Cooling Fan (Fan
Clutch)
Your vehicle may have an engine driven
cooling fan drive (also called a fan clutch).
This fan drive changes the fan speed to
match the vehicle ’s changing cooling air
flow requirements. Fan speed, fan noise
level and fuel consumption all will increase
based on the driving conditions that
include trailer towing, hill climbing, heavy
loads, high speed and high ambient
temperature, individually or in combination.
The fan drive is designed to provide the
minimum fan speed (and resulting
minimum fan noise and fuel consumption)
required to meet the ever changing vehicle
cooling air flow requirements. You will hear
the amount of fan noise increasing and
decreasing as the engine power
requirements and vehicle driving conditions
change as you drive. This is to be expected
as being normal to the operation of your
vehicle. High levels of fan noise might also
be heard when your engine is first started,
and should normally decrease after driving
for a short time.
AUTOMATIC TRANSMISSION
FLUID CHECK
The transmission does not consume fluid.
However, the fluid level should be checked
if the transmission is not working properly,
for example if the transmission slips, shifts
slowly or if there are signs of fluid loss.
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The transmission fluid and filter on your
vehicle must be replaced at the specified
service interval. See Scheduled
Maintenance (page 316).
Automatic transmission fluid expands
when warmed. To check the fluid level
consistently and accurately, do the
following:
1. Drive the vehicle until it reaches normal
operating temperature. This may take
up to
20 mi (30 km).
2. Make sure that your vehicle is on level ground.
3. With the engine running, parking brake
engaged and your foot on the brake
pedal, move the gearshift lever through
all of the gear ranges. Allow sufficient
time for each gear to engage.
4. Make sure the parking brake is on. Make
sure the transmission is in park (P) or
neutral (N) and leave the engine
running.
5. Open the hood. See
Opening and
Closing the Hood (page 181).
6. Remove the dipstick and wipe it with a clean, lint-free cloth. See
Under
Hood Overview (page 183).
7. Replace the dipstick and remove it again to check the fluid level.
8. If the fluid level is correct, replace the dipstick and make sure it is fully seated.
Note: If the fluid level is between the
maximum and minimum marks, the fluid
level is acceptable. Do not add fluid. Transmission Fluid Level
Low Fluid Level
If the fluid level is at or below the minimum
mark, add fluid immediately. See
Capacities and Specifications
(page
258).
Note: If there is no indication of fluid on the
dipstick, have your vehicle checked
immediately.
Correct Fluid Level Make sure that the fluid level is between
the maximum and minimum marks.
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High Fluid Level
Do not add fluid further than the maximum
mark. Fluid levels above the maximum
mark may cause shift or engagement
concerns and possible damage.
Note:
High fluid levels can be caused by an
overheating condition.
Adding Transmission Fluid
Do not use supplemental transmission
fluid additives, treatments or cleaning
agents. The use of these materials may
affect transmission operation and result
in damage to internal transmission
components and could lead to
transmission damage that may not be
covered by the vehicle Warranty.
Use only recommended transmission fluid
that meets our specifications. See
Capacities and Specifications (page
258).
Note: Use of a non-approved automatic
transmission fluid may cause internal
transmission component damage.
If necessary, add fluid in
8 fl oz (250 ml)
increments through the filler tube until the
level is correct.
If an overfill occurs, excess fluid should be
removed, have your vehicle checked as
soon as possible. BRAKE FLUID CHECK WARNINGS
Do not use any fluid other than the
recommended brake fluid as this will
reduce brake efficiency. Use of
incorrect fluid could result in the loss of
vehicle control, serious personal injury or
death. Only use brake fluid from a sealed
container. Contamination with dirt,
water, petroleum products or other
materials may result in brake system
damage or failure. Failure to adhere to this
warning could result in the loss of vehicle
control, serious personal injury or death. Do not allow the fluid to touch your
skin or eyes. If this happens, rinse the
affected areas immediately with
plenty of water and contact your physician. A fluid level between the
MAX and
MIN lines is within the normal
operating range and there is no need
to add fluid. A fluid level not in the normal
operating range could compromise the
performance of the system. Have your
vehicle checked immediately. 200
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•
Maintaining proper steering gear and
power steering pump lubricant levels.
• Checking steering column joint bolts
and steering linkage, particularly for
body-to-chassis clearance.
Steering Column Joint Bolts
As a good maintenance practice, check
steering column joint bolt tightness every
60,000 mi (96,000 km) or annually,
whichever occurs first. Do not overtighten
the bolts.
Hydraulic System
Whenever draining and refilling the power
steering's hydraulic system for any reason,
bleed air from the system before returning
the vehicle to service. Failure to bleed the
hydraulic system properly can result in
degradation of power system performance.
Consult an authorized dealer who is aware
of the proper procedures for filling and
bleeding the system.
SUSPENSION SYSTEM
INSPECTION
Note: Do not adjust air suspension height
to any setting other than the specified
setting. Altering the height setting changes
the driveline angle and may result in
unwarrantable component damage, such
as transmission component damage.
Verify drive axle air suspension height and
height control valve performance at engine
oil change intervals.
Periodically check:
• Condition of spring leaves for evidence
of fatigue, bending or breakage.
• Condition of suspension mounting
brackets and bushings.
• Torque rod mounting fasteners for
tightness. •
For proper suspension alignment.
Maintain proper alignment at all times.
• U-bolts. After the chassis has been
operating under load for
1,000 mi
(1,600 km) or six months (whichever
comes first), the U-bolt nuts must be
re-torqued. Re-torque the U-bolt nuts
every
37,000 mi (60,000 km)
thereafter. Clean and lubricate the
U-bolt and nut threads and seats to
make sure a like new condition when
re-torqueing. See
Spring U-Bolt
Check (page 224).
FRAME AND TOW HOOK
INSPECTION
Your vehicle's chassis is manufactured
with frame rails of either HSLA steel or
heat-treated steel. Handle each in a
specific manner to make sure maximum
service life. Consult the service manual or
an authorized dealer before attempting
frame repair or modification.
It is important, particularly on vehicles that
use tow hooks frequently, to inspect the
front and rear tow hooks for damage or a
loose mounting.
REAR AXLE FLUID CHECK
Your rear axle may have an optional
synthetic lubricant that allows the use of
extended service intervals. A tag on the
filler plug identifies the use of the synthetic
lubricant.
Only use a lubricant that meets
manufacturer specifications. Only use a
lubricant that meets manufacturer
specifications. Use of a non-approved rear
axle lubricant may cause internal axle
component damage. See Capacities and
Specifications
(page 258).
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Multi-point inspection
Washer spray and wiper operation
For oil and fluid leaks
Hazard warning system operation
Hood rest for lubrication
* Brake, coolant recovery reservoir, automatic transmission, power steering and window
washer.
** If your vehicle is equipped with a temporary mobility kit, check the tire sealant expiration
Use By date on the canister. Replace as needed.
Be sure to ask your dealership service
advisor or technician about the multi-point
vehicle inspection. It is a comprehensive
way to perform a thorough inspection of
your vehicle. Your checklist gives you
immediate feedback on the overall
condition of your vehicle.
NORMAL SCHEDULED
MAINTENANCE
Intelligent Oil-Life Monitor™
(Diesel Engine Only)
Your diesel engine is equipped with an
Intelligent Oil-Life Monitor that determines
when you should change the engine oil
based on how your vehicle is used. By using
several important factors in its
calculations, the monitor helps reduce the
cost of owning your vehicle and reduces
environmental waste at the same time. This means you do not have to remember
to change the oil on a mileage-based
schedule. Your vehicle lets you know when
an oil change is due by displaying a
message in the information display.
The following table provides examples of
vehicle use and its impact on oil change
intervals. It is a guideline only. Actual oil
change intervals depend on several factors
and generally decrease with severity of
use.
When to expect the message prompting you to change your oil
Vehicle use and example
Interval
Normal
7500-10000 miles
(12000-16000 km) Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling
Severe
5000-7499 miles
(8000-11999 km)
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