Using Traction Control - Vehicles With:
Hydraulic Brakes.......................................132
Cruise Control
Principle of Operation.................................134
Using Cruise Control
....................................134
Driving Aids
Steering............................................................136
Load Carrying
Load Limit........................................................137
Air Suspension
...............................................138
Towing
Towing a Trailer.............................................140
Recommended Towing Weights.............141
Essential Towing Checks...........................142
Transporting the Vehicle............................143
Fifth Wheel Operation
................................144
Driving Hints
Breaking-In.....................................................146
General Driving Points................................146
Economical Driving
......................................147
Cold Weather Precautions
........................148
Driving Through Water...............................150
Roadside Emergencies
Roadside Assistance
....................................151
Hazard Warning Flashers...........................152
Fuel Shutoff....................................................152
Jump Starting the Vehicle
.........................153
Customer Assistance
Getting the Services You Need
...............156
In California (U.S. Only)
..............................157
The Better Business Bureau (BBB) Auto Line Program (U.S. Only)......................158 Utilizing the Mediation/Arbitration
Program (Canada Only)
........................158
Getting Assistance Outside the U.S. and Canada.........................................................159
Ordering Additional Owner's Literature.....................................................160
Reporting Safety Defects (U.S. Only).............................................................160
Reporting Safety Defects (Canada Only)..............................................................161
Fuses
Fuse Specification Chart...........................162
Changing a Fuse...........................................170
Vehicle Inspection Guide
Vehicle Inspection Information.................171
Maintenance
General Information....................................180
Opening and Closing the Hood................181
Under Hood Overview - 6.8L...................183
Under Hood Overview - 6.7L Diesel......184
Engine Oil Dipstick - 6.8L..........................185
Engine Oil Dipstick - 6.7L Diesel.............185
Engine Oil Check - 6.8L
..............................185
Engine Oil Check - 6.7L Diesel.................186
Changing the Engine Oil and Oil Filter..............................................................188
Changing the Coalescer Filter Element.......................................................189
Oil Change Indicator Reset.......................190
Engine Coolant Check - 6.8L
...................190
Engine Coolant Check - 6.7L Diesel.......195
Automatic Transmission Fluid Check...........................................................200
Brake Fluid Check.........................................201
Power Steering Fluid Check.....................202
Washer Fluid Check....................................202
Draining the Fuel Filter Water Trap - 6.7L Diesel
...........................................................203
3
F650750 (TBC), enUSA, First Printing Table of Contents
Engine starting (with parking brake applied)
Check the gauge (diesel engine) or indicator light (gasoline
engine) to verify the alternator is charging.
Voltmeter
Inspect for excessive free play in the steering linkages. The
steering wheel should have less than 2 in (5 cm) of free play
at its rim.
Steering linkage free play
Verify the parking brake holds the vehicle by gently trying to
pull forward with the parking brake applied.
Parking brake
Verify operation using the following procedure. Chock the
wheels, if necessary. Push in the parking brake and, on
tractors, push in the tractor parking brake knob:
Air brakes
1. Verify the air compressor or governor cutout pressure is
approximately 120 psi (827 kPa).
2. Turn off the engine, and then turn the key back to the on
position (without starting the engine).
3. Without the brake pedal applied, note the air pressure drop
for one minute. It should be less than 2 psi (14 kPa) for single
vehicles and
3 psi (21 kPa) for combination vehicles.
4. Press and hold the brake pedal with
90 psi (621 kPa) or
more. Make sure there is no more than a 3 psi (21 kPa) per
minute leak for single vehicles and a 4 psi (28 kPa) minute
leak for combination vehicles.
5. Pump the brake pedal to deplete the system of air pressure.
The warning light and tone should turn on at 57 psi (393 kPa).
6. Pump the brake pedal and make sure the parking brake
and trailer parking brake knobs pop out at
20 psi (138 kPa)
or higher.
Verify that the fluid level is in the proper operating range. See
Automatic Transmission Fluid Check
(page 200).
Automatic transmission
fluid Front of vehicle
Verify all exterior lights illuminate and are clean.
Lights
Check headlights function on high and low beam.
Verify reflectors are clean, unbroken and of proper color (red
on rear, amber elsewhere).
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F650750 (TBC), enUSA, First Printing Vehicle Inspection Guide
UNDER HOOD OVERVIEW - 6.8L
Windshield washer fluid reservoir. See Washer Fluid Check (page 202).
A
Engine coolant reservoir. See
Engine Coolant Check (page 190).
B
Automatic transmission fluid dipstick. See
Automatic Transmission Fluid
Check (page 200).
C
Brake fluid reservoir. See
Brake Fluid Check (page 201).
D
Engine compartment fusebox. See
Fuses (page 162).
E
Power steering fluid reservoir. See
Power Steering Fluid Check (page 202).
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 210).
I
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F650750 (TBC), enUSA, First Printing MaintenanceABC
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UNDER HOOD OVERVIEW - 6.7L DIESEL
Windshield washer fluid reservoir. See Washer Fluid Check (page 202).
A
Secondary Cooling System Reservoir. See Engine Coolant Check (page 195).
B
Engine coolant reservoir. See
Engine Coolant Check (page 195).
C
Automatic transmission fluid dipstick. See
Automatic Transmission Fluid
Check (page 200).
D
Secondary fuel filter. See
Draining the Fuel Filter Water Trap (page 203).
E
Engine oil separator. See Changing the Engine Oil and Oil Filter (page 188).
F
Brake fluid reservoir. See
Brake Fluid Check (page 201).
G
Engine compartment fusebox. See
Fuses (page 162).
H
Power steering fluid reservoir. See
Power Steering Fluid Check (page 202).
I
Air brake compressor. See
Brake System Inspection (page 218).
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 211).
M
184
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E209131C
You have limited engine power when in the
fail-safe mode, so drive the vehicle with
caution. The vehicle will not be able to
maintain high-speed operation and the
engine will run rough. Remember that the
engine is capable of completely shutting
down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely
possible and turn off the engine.
2. Arrange for the vehicle to be taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
5. Re-start the engine and take your vehicle to an authorized dealer.
Note: Driving the vehicle without repairing
the engine problem increases the chance of
engine damage. Take your vehicle to an
authorized dealer as soon as possible.
Engine Fluid Temperature
Management (If Equipped) WARNINGS
To reduce the risk of collision and
injury, be prepared that the vehicle
speed may reduce and the vehicle
may not be able to accelerate with full
power until the fluid temperatures reduce. Never remove the coolant reservoir
cap while the engine is running or hot.
Your vehicle has been designed to pull a
trailer, but because of the added load, the
vehicle
’s engine may temporarily reach
higher temperatures during severe
operating conditions such as ascending a
long or steep grade while pulling a trailer
in hot ambient temperatures. At this time, you may notice your engine
coolant temperature gauge needle move
toward the H and the POWER REDUCED
TO LOWER TEMP message may appear
in the information display.
You may notice a reduction in the vehicle
’s
speed caused by reduced engine power.
In order to manage the engine fluid
temperatures, your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction will depend on
the vehicle loading, towing, grade, ambient
temperature, and other factors. If this
occurs, there is no need to pull off the road.
The vehicle can continue to be driven while
this message is active.
The air conditioning may turn on and off
during severe operating conditions to
protect the engine from overheating. When
the engine coolant temperature decreases
to a more normal operating temperature,
the air conditioning will turn on once again.
If the engine coolant temperature gauge
moves fully into the red (hot) area, or if the
coolant temperature warning or service
engine soon messages appear in your
information display:
1. Stop your vehicle as soon as safely possible and shift the transmission into
Park (P).
2. Leave the engine running until the coolant temperature gauge needle
moves away from the H range. After
several minutes, if this does not
happen, follow the remaining steps.
3. Switch the engine off and wait for it to
cool before checking the coolant level.
4. If the coolant level is normal, you may restart your engine and continue on.
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F650750 (TBC), enUSA, First Printing Maintenance
AUTOMATIC TRANSMISSION
FLUID CHECK
Have an authorized dealer check and
change the transmission fluid and filter at
the correct service interval. See
Scheduled Maintenance (page 314).
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.
Checking Automatic Transmission
Fluid
Check and change the fluid at the
scheduled intervals. See
Scheduled
Maintenance (page 314). Your
transmission does not consume fluid.
However, the fluid level should be checked
if the transmission is not working properly,
such as if the transmission slips or shifts
slowly or if you notice some sign of fluid
leakage.
Automatic transmission fluid expands
when warmed. To obtain an accurate fluid
check, drive the vehicle until it is at normal
operating temperature, approximately
20 mi (30 km). Verify that the transmission
fluid temperature gauge, located on the
instrument cluster, is within normal range.
1. Drive the vehicle
20 mi (30 km)until it
reaches normal operating temperature.
2. Park the vehicle on a level surface and
engage the parking brake.
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. Latch the gearshift lever in park (P) or neutral (N) and leave the engine
running. 5. Remove the dipstick, wiping it clean
with a clean, dry lint free rag. If
necessary, refer to the Under Hood
Overview in this chapter for the
location of the dipstick.
6. Install the dipstick making sure it is fully
seated in the filler tube.
7. Remove the dipstick and inspect the fluid level. The fluid should be in the
designated area for normal operating
temperature or ambient temperature.
Low Fluid Level Do not drive the vehicle if there is no
indication of fluid on the dipstick and the
ambient temperature is above
50°F
(10°C).
Correct Fluid Level 200
F650750 (TBC), enUSA, First Printing MaintenanceE163740 E163742
Check the fluid at the normal operating
temperature of 196°F (91°C) to 215°F
(102°C) on a level surface. The normal
operating temperature can be reached
after approximately
20 mi (30 km).
High Fluid Level Fluid levels above the safe range may
result in transmission failure. An overfill
condition of transmission fluid may cause
shift and engagement concerns, and
possible damage.
High fluid levels can be caused by an
overheating condition.
Adjusting Automatic Transmission
Fluid Levels
Note:
Use of a non-approved automatic
transmission fluid may cause internal
transmission component damage.
Before adding any fluid, make sure the
correct type is used. The type of fluid used
is normally indicated on:
• the dipstick handle.
• See
Capacities and Specifications
(page 256).
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 by a qualified technician.
Note:
An overfill condition of transmission
fluid may cause shift and engagement
concerns, and possible damage.
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.
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.
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F650750 (TBC), enUSA, First Printing MaintenanceE163744 E163746
CAPACITIES AND SPECIFICATIONS - 6.8L
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant R-134a under high
pressure. Opening the air conditioning refrigerant system can cause personal injury.
Have the air conditioning refrigerant system serviced only by qualified personnel.
Capacity
Item
7.0 qt (6.6 L)
Engine oil
28.8 qt (27.3 L)1
Engine coolant
58 gal (219.5 L)
Fuel tank (Limited Series)
(Usable capacity)2
62 gal (234.6 L)
(Liquid capacity)
47 gal (177.9 L)
Fuel tank (Small)
(Usable capacity)2
50 gal (189.2 L)
(Liquid capacity)
59 gal (223.3 L)
Fuel tank (Large)
(Usable capacity)2
63 gal (238.4 L)
(Liquid capacity)
Between MIN and MAX on brake fluid reservoir
Brake fluid
17.4 qt (16.5L)3
Automatic transmission fluid
16 pt (7.5L)3
Rear axle (S-140)
37 pt (17.5L)3
Rear axle (S-170)
37 pt (17.5L)3
Rear axle (S-190)
28 pt (13.2L)3
Rear axle (21060S)
17.6 pt (8.3L)4
Power Steering (TAS40)
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F650750 (TBC), enUSA, First Printing Capacities and Specifications