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The engine speed may increase slightly. To allow parked regeneration to
continue uninterrupted:
1. The vehicle must remain parked
2. The transmission must remain in P (Park) or N (Neutral) (as
previously described in Step 2).
3. The accelerator pedal, service brake pedal, and clutch pedal (if
equipped) must not be pressed
4. The parking brake must remain set
On average (depending on filter level and other factors), the process will
take 20–30 minutes to complete. The DPF lamp will turn off when the
process is complete. Repeat Steps 1–5, if parked regeneration is interrupted.
To discontinue parked regeneration (Cummins engine only)
Press any of the floor pedals to discontinue parked regeneration.
Diesel particulate filter maintenance and service
The DPF is designed to retain a relatively large amount of residual ash
and provide many miles and hours of maintenance-free operation. At
some point, generally beyond 150,000 miles (240,000 km) or 5,000 hours
of operation (whichever comes first), the DPF will require professional
cleaning to remove the accumulated ash
The exact number of miles or hours of operation will vary greatly
depending upon vehicle/engine loading and operating conditions, ash
content of the engine oil, and quality of the diesel fuel used in your
truck. Adhering to your engine manufacturer’s recommended oil and fuel
specifications will maximize the miles and hours of operation before a
DPF professional cleaning is required. Refer to your engine
manufacturer’s owner’s manual for more details regarding recommended
maintenance and service of your DPF.
Exhaust outlet assembly
WARNING:The normal operating temperature of the exhaust
system is very high. Never work around or attempt to repair any
part of the exhaust system until it has cooled. Failure to follow these
instructions may result in serious personal injury.
The exhaust outlet assembly on your vehicle is a uniquely functioning
device that accompanies the DPF assembly. It is designed to help control
the temperature of the exhaust during the DPF regeneration process.Do
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Engine and Driveline System
•Transmission Enclosure:inspect for cracks, holes, and tears. Clean
any deposits such as oil, dirt, and stones.
•Engine valve covers and block covers are made to damp out engine
mechanical noise and, if needed, should be replaced with
recommended parts. Check for mechanical isolations.
Exhaust System
•Inspect the exhaust system for leaks at various joint connections and
tighten the clamps.
•Do a visual inspection for cracks or holes in the muffler and tail pipe.
•Always use the recommended parts when items need to be replaced.
•The tail pipe elbow or offset tail pipe orientation must not be changed
from the standard position as originally received.
•To avoid abnormal changes in vehicle sound levels, it is necessary for
the owner to perform inspections and necessary maintenance at the
intervals shown in theScheduled Maintenance Guidechapter.
POWER STEERING FLUID
Check the power steering fluid level using the following procedure. If
adding fluid is necessary, refer toLubricant Specificationsin this
chapter for the proper fluid type. Refer to theScheduled Maintenance
Guidechapter for the recommended service intervals.
1. Set the parking brake, shift into N (Neutral) (automatic transmission)
or 1 (First) (manual transmission) and turn the engine off.
2. Open the hood.
3. Clean the top of the power steering fluid reservoir.
4. Remove the dipstick from the reservoir and wipe the dipstick clean.
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manufacturer, to ensure that any additional body lights and accessories
are connected to circuits that are both appropriate and not overloaded.
No modification should be made to any vehicle control system without
first contacting your dealer.
SUSPENSION INSPECTION
Note:Do not adjust air suspension height to any setting other than the
specified setting. Altering the height setting will change 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 lube oil change intervals.
Periodically:
•Check condition of spring leaves for evidence of fatigue, bending or
breakage.
•Check condition of suspension mounting brackets and bushings.
•Check that torque rod mounting fasteners are tight.
•Check to be sure the suspension alignment is maintained at all times.
•Check U-bolts after the chassis has been operating under load for
1,000 miles (1,600 km) or six months, whichever comes first, the
U-Bolt nuts must be re-torqued. The U-Bolt nuts thereafter must be
re-torqued every 36,000 miles (58,000 km). The U-Bolt and nut
threads and seats should be cleaned and lubricated to ensure a “like
new” condition when re-torquing.
Note:See theU-Bolt Nut Torquechart later in this section.
Supporting your vehicle for service
When performing service repairs on your vehicle, first prepare the
vehicle by doing the following:
1. Park the vehicle on a level concrete floor.
2. Set the parking brake and block the wheels to prevent the vehicle
from moving.
3. Select a jack with a rated capacity sufficient to lift and hold up the
vehicle.
4. Raise the vehicle with the jack applied to the axle(s). DO NOT use the
bumper as a lifting point.
5. Support the vehicle with floor stands under the axle(s). If the axle or
the suspension are being serviced, support the vehicle with floor stands
under the frame side-members, preferably between the axles.
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Oil lubricated front wheel bearings
During normal vehicle duty cycle, the lube and air inside the hub/wheel
cavity expands and if not vented, causes pressure build-up that could
cause accelerated seal wear.
There are two venting methods:
•a slit or small hole in the rubber check vent or
•the window
You can use either of these methods to prevent pressure build-up.
Normal maintenance
Over a period of time, if not routinely cleaned, a slight film of oil can
collect dirt around the rubber fill plug and face, which could appear to
be a leak. Routine cleaning ensures that the lube level can be easily
observed through the clear window as intended. In situations where the
window is clean on the outside but discolored on the inside, the lube
level may be checked by inserting a finger through the rubber check
vent hole.
The specified lube level for a clear window type hubcaps is from the
minimum line to + 5/16 inch above the minimum line.
If the lube level should suddenly drop dramatically below the minimum
level, see theWorkshop Manualfor diagnostic procedure.
Installation, tightening and alignment
When installing wheels, be certain that the threads on studs and nuts are
clean to permit correct torque. The mounting surfaces of rims, wheels,
spacer rings and clamps must be free of dirt, rust, lubricants or damage.
Use a wire brush to clean the mounting contact surfaces. Do not use
lubricant on threads.
After the rim or wheel has been properly tightened, it should be checked
for alignment. Rotate the wheel with a piece of chalk attached to a steady,
firm surface, and placed to just barely clear the outside surface of the tire
bead seat. This procedure will point out the high spot. A high spot does
not necessarily mean that the lug nuts have been unevenly tightened. This
condition or misalignment could be caused by a bent wheel.
Use the following installation procedure:
1. Slide inner rear or front tire and wheel in position over studs and push
it back as far as possible. Use care so that the threads on studs are not
damaged.
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LUBRICANT SPECIFICATIONS
ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Non-driving front axle
Eaton-Spicer axle
(generic) - front
axle wheel bearing
oilMultipurpose EP
gear lube of API
GL-5 quality
meeting
MIL-PRF-2105E
specifications
including
synthetic
lubricants.Do
not mix
conventional
and synthetic
lubricants.SAE 75W:
–40°F to –15°F
(–40°C to –26°C)Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL SAE 75W-80:
-40°F to 80°F
(–40°C to 27°C)
SAE 75W-140:
–40°F to 100°F
(–40°C to 38°C)
SAE 75W-140:
–40°F and above
(–40°C and
above)Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL
SAE 80W-90:
–15°F to 100°F
(–26°C to 38°C)Motorcraft SAE
80W-90
Premium Rear
Axle Lubricant /
XY–80W90–QL
SAE 80W-140:
–15°F and above
(–26°C and
above)Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL SAE 85W-140:
10°F and above
(–12°C and
above)
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Spicer axle - front
axle wheel bearing
oilMultipurpose EP
gear lube of API
GL-5 quality
meeting
MIL-PRF-2105E
specifications
including
synthetic
lubricants.Do
not mix
conventional
and synthetic
lubricants.SAE 75W:
–40°F to 32°F
(–40°C to 0°C)Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL SAE 75W-140:
–40°F to 100°F
(–40°C to 38°C)
SAE 80W:
–15°F to 70°F
(–26°C to 21°C)Motorcraft SAE
80W-90
Premium Rear
Axle Lubricant /
XY–80W90–QL
SAE 90W:
10°F to 100°F
(–12°C to 38°C)SAE 90 Hypoid
Gear Oil /
C6AZ–19580–E
SAE 75W-140:
–40°F and above
(–40°C and
above)Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL SAE 80W-140:
–15°F and above
(–26°C and
above)
SAE 85W-140:
10°F and above
(–12°C and
above)
SAE 140W:
40°F and above
(4°C and above)
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Windshield washer
Washer fluid WSB-M8B16-A2 — Motorcraft
Premium
Windshield
Washer
Concentrate /
ZC-32-A
Transmission
Eaton-Fuller Petroleum oil:
Engine oil API-SL
or API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50:
Above 10°F
(–12°C)—
SAE 40:
Below 10°F
(–12°C)—
Mineral gear oil:
API-GL-1 (rust
and oxidation
inhibited)SAE 80W–90:
Above 10°F
(–12°C)—
SAE 75W:
Below 10°F
(–12°C)—
Synthetic oil:
Eaton,
Roadranger
synthetic CD-50
transmission fluidCD SAE 50:
All temperatures—
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Spicer
(non-synchronized)
(lubricants are
listed in order of
preference)Petroleum oil:
Engine oil API-SL
or API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50:
Above 0°F
(–18°C)—
SAE 40:
Below 0°F
(–18°C)—
Mineral gear oil:
API-GL-1 (rust
and oxidation
inhibited) (EP
gear oils are not
acceptable)SAE 90:
Above 0°F
(–18°C)—
SAE 80:
Below 0°F
(–18°C)—
Synthetic oil:
Synthetic Engine
Oil meeting
MIL-L-2104E or
MIL-L-46152E,
API-SL or API-CFCD SAE 50:
All temperatures—
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