Page 167 of 379
Protected components
Fuse amp rating
Fuse or relay number
Powertrain control module.
Relay
38
Not used.
—
39
Heated mirrors.
15A**
40
Not used
—
41
Trailer tow and body builder stoplamps.
20A**
42
Not used.
—
43
Ancillary translator module.
20A**
44
Run/start relay coil.
10A**
45
Transmission control module keep-alive
power (diesel engine).
10A**
46
A/C clutch.
10A**
47
Run/start.
Relay
48
Air dryer.
20A**
49
Blower motor relay coil.
10A**
50
Not used.
—
51
Powertrain control module run/start
(diesel engine).
10A**
52
Transmission control module run/start
(diesel engine).
Not used.
—
53
Anti-lock brake system run/start.
10A**
54
Seat compressor relay coil.
10A**
55
Chassis solenoids relay coil.
Heated mirror relay coil.
Passenger compartment fuse panel run/
start feed
20A**
56
Fuel pump.
Relay
57
Wiper relay.
5A**
58
Chassis solenoid relay.
5A**
59
Air ride seat compressor relay.
164
F650750 (TBC), enUSA, First Printing Fuses
Page 186 of 379
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
183
F650750 (TBC), enUSA, First Printing MaintenanceABC
FGHI
DE
E209130
Page 187 of 379

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
F650750 (TBC), enUSA, First Printing MaintenanceABD
IJKLM
FEGH
E209131C
Page 225 of 379

Follow the tire manufacturer's
recommended cold inflation pressure for
the tire size, load range (ply rating) and
steer axle loading typical for their operation
(each steer axle tire equals ½ steer axle
loading).
Special applications may warrant a setting
based on experience with the type of tire
operating loads and conditions. Radial tires
are more sensitive to toe-in setting than
bias ply tires. Fine tuning school bus
alignment to line-haul truck standards
does not drastically improve tire tread life.
STEERING SYSTEM
INSPECTION
WARNING
Failure to maintain the steering
system in proper condition can cause
reduced steering ability resulting in
property damage, personal injury or death. Note:
Have any steering problems
immediately corrected by a qualified service
technician.
Ask your service technician to examine the
steering mechanism. Only minor
adjustments may be necessary.
Regular inspections should include:
• Checking the tie rod, drag link end
clamp bolts and ball joints for proper
tightness.
• Checking for installation and spread of
cotter pins and tightness of nuts at
both ends of the tie rod and drag link.
• Checking that the pitman arm (steering
arm at steering gear) mounting is tight
and locked. Check system for leaks or
hose chafing. Repair immediately, if
necessary. •
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.
222
F650750 (TBC), enUSA, First Printing Maintenance
Page 259 of 379

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)
256
F650750 (TBC), enUSA, First Printing Capacities and Specifications
Page 261 of 379

Specification
Name
VC-3DIL-B WSS-M97B44-D2
Engine coolant (Canada):
Motorcraft Orange Antifreeze/Coolant Prediluted
CVC-3DIL-B
WSS-M6C65-A3
Brake fluid:
Motorcraft® DOT 5.1 Motor Vehicle Brake Fluid
PM-21
WSS-M2C938-A
Automatic transmission fluid (U.S. and Mexico):
MERCON LV
Motorcraft MERCON LV Automatic Transmission Fluid
XT-10-QLVC
WSS-M2C938-A
Automatic transmission fluid (Canada):
MERCON LV
Motorcraft MERCON LV Automatic Transmission Fluid
CXT-10-QLVC
WSL-M2C192-A
Front axle (wheel bearing oil)
Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant
XY-75W140-QL
WSP-M2C197-A*
Recommended Rear axle fluid (U.S.): (S-140)
Motorcraft® SAE 80W-90 Premium Rear Axle Lubricant
XY-80W90-QL
WSP-M2C197-A*
Recommended Rear axle fluid (Canada): (S-140)
Motorcraft® SAE 80W-90 Premium Rear Axle Lubricant
CXY-80W90-1L
WSL-M2C192-A*
Optional Rear axle fluid (U.S.): (S-140)
Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant
XY-75W140-QL
WSL-M2C192-A*
Optional Rear axle fluid (Canada): (S-140)
Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant
CXY-75W140-1L
WSP-M2C197-A
Recommended Rear axle fluid (U.S.): (S-170)
Motorcraft® SAE 80W-90 Premium Rear Axle Lubricant
XY-80W90-QL
WSP-M2C197-A
Recommended Rear axle fluid (Canada): (S-170)
Motorcraft® SAE 80W-90 Premium Rear Axle Lubricant
CXY-80W90-1L
WSL-M2C192-A
Optional Rear axle fluid (U.S.): (S-170)
Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant
XY-75W140-QL
258
F650750 (TBC), enUSA, First Printing Capacities and Specifications
Page 263 of 379

Specification
Name
ESB-M1C93-B
Multi-purpose grease:
Motorcraft Multi-Purpose Grease Spray
XL-5-A
--
Lock cylinders (U.S.):
Penetrating and Lock Lubricant
XL-1
--
Lock cylinders (Canada):
Penetrating Fluid
CXC-51-A
--
Lock cylinders (Mexico):
Penetrating and Lock Lubricant
MXL-1
WSD-M1C227-A
Transmission, parking brake linkages and pivots, brake
pedal shift:
Motorcraft Premium Long-Life Grease
XG-1-E
* Motorcraft® SAE 75W-140 Synthetic
Rear Axle Lubricant is standard for
(Limited Series) vehicles.
If you use oil and fluids that do not meet
the defined specification and viscosity
grade, this may lead to:
• Component damage which is not
covered by the vehicle warranty.
• Longer engine cranking periods.
• Increased emission levels.
• Reduced engine performance.
• Reduced fuel economy.
• Degraded brake performance.
We recommend Motorcraft motor oil for
your vehicle. If Motorcraft oil is not
available, use motor oils of the
recommended viscosity grade that meet
API SN requirements and display the API
Certification Mark for gasoline engines. Do
not use oil labeled with API SN service
category unless the label also displays the
API certification mark. An oil that displays this symbol conforms
to current engine, emission system and
fuel economy performance standards of
the International Lubricants Specification
Advisory Council (ILSAC).
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by your vehicle warranty.
260
F650750 (TBC), enUSA, First Printing Capacities and SpecificationsE142732
Page 264 of 379

Note:
Ford recommends using DOT 4 Low
Viscosity (LV) High Performance Brake Fluid
or equivalent meeting WSS-M6C65-A2. Use
of any fluid other than the recommended
fluid may cause degraded brake
performance and not meet the Ford
performance standards. Keep brake fluid
clean and dry. Contamination with dirt,
water, petroleum products or other
materials may result in brake system
damage and possible failure. Note:
Automatic transmissions that require
MERCON LV transmission fluid should only
use MERCON LV transmission fluid. The
use of any other fluid may cause
transmission damage.
CAPACITIES AND SPECIFICATIONS - 6.7L DIESEL
Capacities Capacity
Item
15.0 qt (14.2 L)
Engine oil (includes filter change)
35.1 qt (33.2 L)1
Engine coolant (primary high-temperature
cooling system loop)
47.3 fl oz (1.4 L)2
Engine coolant additive (primary high-
temperature cooling system loop)
15.1 qt (14.3 L)1
Engine coolant (secondary cooling system)
16.0 fl oz (473 ml)2
Engine coolant additive (secondary cooling
system)
8 gal (30.2 L)
Diesel Exhaust Fluid (DEF)
61 gal (230.9 L)
Fuel tank (Dual)(Left side)
(Usable capacity)3
65 gal (246 L)
(Liquid capacity)
47 gal (177.9 L)
Fuel tank (Dual)(Right side)
(Usable capacity)3
50 gal (189.2 L)
(Liquid capacity)
47 gal (177.9 L)
Fuel tank (Small)
(Usable capacity)3
50 gal (189.2 L)
261
F650750 (TBC), enUSA, First Printing Capacities and Specifications