Ford Super Duty (2017 year). Manual — part 50

Resonator and Tailpipe Assembly
Maintenance

Aftermarket devices or modifications to
the exhaust system may reduce the
effectiveness of the exhaust system as
well as cause damage to the exhaust
system or engine. This may also degrade
vehicle performance and could lead to
engine damage that may not be covered
by the vehicle Warranty.

Emission Control System Laws

WARNING

Do not remove or alter the original
equipment floor covering or
insulation between it and the metal

floor of the vehicle. The floor covering and
insulation protect occupants of the vehicle
from the engine and exhaust system heat
and noise. On vehicles with no original
equipment floor covering insulation, do not
carry passengers in a manner that permits
prolonged skin contact with the metal
floor. Failure to follow these instructions
may result in fire or personal injury.

In the United States, federal law and
certain state laws prohibit removing or
rendering the emission control system
inoperative. Similar federal or provincial
laws may apply in Canada. We do not
recommend any vehicle modification
without determining applicable law.

Tampering with emissions
control system, including related
sensors or the diesel exhaust

fluid injection system can result in reduced
engine power and the service engine soon
warning lamp illuminating in the
information display.

Tampering with a Noise Control
System

Federal law prohibits the following acts or
the causing thereof:
•

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.

•

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 United States
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, 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 Owner's
Manual.

If you experience difficulty starting the
engine, 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 and water
separator.

•

A clogged fuel filter.

•

Contaminated fuel.

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•

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 the
climatic conditions.

If these checks do not help you correct the
engine performance problem you are
experiencing, have your vehicle checked
as soon as possible.

Noise Emissions Warranty, Prohibited
Tampering Acts and Maintenance

On January 1, 1978, Federal regulation
became effective governing the noise
emission on vehicles weighing over
10,000 lb (4,536 kg) Gross Vehicle Weight
Rating. The preceding 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 lb (4,536 kg) Gross Vehicle Weight
Rating.

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AUTOMATIC TRANSMISSION

WARNING

Always apply the parking brake fully
and make sure you shift into park (P).
Switch the ignition off and remove

the key whenever you leave your vehicle.

Understanding the Shift Positions
of Your Automatic Transmission

(If Equipped)

E163183

Putting your vehicle in or out of gear:

1.

Fully press down the brake pedal.

2. Move the gearshift lever into the

desired gear.

3. Come to a complete stop.

4. Move the gearshift lever and securely

latch it in park (P).

Park (P)

This position locks the transmission and
prevents the rear wheels from turning.

Reverse (R)

With the gearshift lever in reverse (R), your
vehicle will move backward. Always come
to a complete stop before shifting into and
out of reverse (R).

Neutral (N)

With the gearshift lever in neutral (N), your
vehicle can be started and is free to roll.
Hold the brake pedal down while in this
position.

Drive (D)

Drive (D) is the normal driving position for
the best fuel economy. The drive function
allows automatic upshifts and downshifts
through gears one through six.

M (Manual)

With the gearshift lever in manual (M), the
driver can change gears up or down as
desired. By moving the gearshift lever from
drive position drive (D) to manual (M) you
now have control of selecting the gear you
desire using buttons on the shift lever. See
Understanding your SelectShift
Automatic™ transmission later in this
section.

To return to normal drive (D) position,
move the shift lever back from manual (M)
to drive (D).

The transmission operates in gears one
through six.

Second (2)

Transmission operates in second (2) gear
only. Use second (2) gear to start-up on
slippery roads.

First (1)

•

Transmission operates in first (1) gear
only.

•

Provides maximum engine braking.

•

Allows upshifts by moving gearshift
lever.

•

Will not downshift into first (1) gear at
high speeds; allows for first (1) gear
when vehicle reaches slower speeds.

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Forced downshifts

•

Allowed in drive (D) with the tow/haul
feature on or off.

•

Press the accelerator to the floor.

•

Allows transmission to select an
appropriate gear.

Tow/Haul Mode

WARNING

Do not use the tow/haul feature
when driving in icy or slippery
conditions as the increased engine

braking can cause the rear wheels to slide
and your vehicle to swing around with the
possible loss of vehicle control.

E161509

To activate tow/haul, press the
button on the gearshift lever
once. The TOW HAUL indicator

light illuminates in the instrument cluster.

The tow/haul feature:
•

Delays upshifts to reduce the frequency
of transmission shifting.

•

Provides engine braking in all forward
gears, which slows your vehicle and
assists you in controlling your vehicle
when descending a grade.

•

Depending on driving conditions and
load conditions, may downshift the
transmission, slow your vehicle and
control your vehicle speed when
descending a hill, without pressing the
accelerator pedal. The amount of
downshift braking provided will vary
based upon the amount you press the
brake pedal.

The tow/haul feature improves
transmission operation when towing a
trailer or a heavy load. All transmission
gear ranges are available when using
tow/haul.

Note: If your vehicle is equipped with the
Adaptive Steering System, enabling the
tow/haul feature will adjust the steering
response. In tow/haul mode the Adaptive
Steering system reduces vehicle sensitivity
to steering inputs at higher vehicle speeds
while maintaining the ease of parking and
maneuverability at low speeds. See
Steering (page 256).

To deactivate the tow/haul feature and
return to normal driving mode, press the
button on the gearshift lever when
tow/haul is active. The TOW HAUL light
deactivates. Tow/haul also deactivates
when you power down your vehicle.

Understanding your SelectShift
Automatic™ transmission

(If Equipped)

E163184

Your vehicle is equipped with a SelectShift
Automatic™ transmission gearshift lever.
The SelectShift Automatic transmission
gives you the ability to change gears up or
down (without a clutch) as desired.

206