Operator Commanded Regeneration
If your vehicle is operated with significant
stationary operation, low speed drive
cycles less than 25 mph, short drive cycles,
a drive time is less than 10 - 15 minutes or
the vehicle does not fully warm up, passive
and active regeneration may not
sufficiently clean the diesel particulate
filter system. Operator commanded
regeneration allows you to manually start
regeneration of the diesel particulate filter
at idle (while stationary) to clean the filter.
If you are not sure whether your vehicle is
equipped with this feature, contact an
authorized dealer.
When to perform Operator Commanded
Regeneration
Use the Operator Commanded
Regeneration feature when the EXH
OVERLOADED DRIVE TO CLEAN
message appears in the information
display and:
• the operator is not able to drive in
manner that allows effective
automatic cleaning (active
regeneration),
• or the operator instead wishes to
manually start regeneration (cleaning)
of the diesel particulate filter while the
vehicle is idle (stationary).
Operator Commanded Regeneration
precautions and safe exhaust position WARNING
Failure to comply with the following
instructions for operator
commanded regeneration may result
in fire, serious injury, death and/or property
damage. Before you start operator commanded
regeneration, do the following: •
Place your vehicle in
P (Park) with the
parking brake set on stable, level
ground
• You must park your vehicle outside of
any structure
• Your vehicle must be 10 – 15 feet (3 –
5 meters) away from any obstructions
and must be away from materials that
can easily combust or melt (for
example, paper, leaves, petroleum
products, fuels, plastics and other dry
organic material)
• Make sure there is a minimum of 1/8
tank of fuel
• Make sure all fluids are at proper levels
Make sure that the louvers (holes) located
at the tip of the exhaust are also clear of
any obstructions as they are used to
introduce fresh air into the tailpipe to cool
the exhaust gas as it leaves. See Cleaning
the Exhaust
(page 53).
How to start Operator Commanded
Regeneration WARNING
Stay clear of exhaust tip during
regeneration. You or others can be
burned.
Note:
You cannot use the operator
commanded regeneration until the diesel
particulate filter load percentage has
reached 100% (Full). The diesel particulate
filter load percentage will fluctuate up and
down when driving your vehicle due to active
and passive regenerations.
Note: During the use of operator
commanded regeneration, you may observe
a light amount of white smoke. This is
normal. You cannot use the operator
commanded if the service engine
soon light is illuminated.
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Super Duty (TFA) Fuel and Refueling
Information display procedure
Start with your vehicle engine fully warmed
and then press the Info button on the
steering wheel until the information display
reads one of the following choices:
If you have warmed your vehicle up and
the diesel particulate filter needs cleaning,
a message requesting permission to initiate
filter cleaning will be displayed EXHST
XX% FULL CLEAN? Y/N or EXHAUST
FULL CLEAN? Y/N. Answer yes to this
prompt and then follow the prompts
regarding exhaust position as needed to
initiate Operator Commanded
Regeneration. Be sure to understand each
prompt. If you are not sure what is being
asked by each prompt, contact an
authorized dealer. The display will confirm
the operation has started and when it has
finished. If you have warmed your vehicle
up and the diesel particulate
filter is near or at saturation, the
powertrain fault indicator will illuminate
and message requesting permission to
initiate filter cleaning will be displayed
EXH AT LIMIT CLEAN? Y/N. Answer yes
to this prompt and then follow the
prompts regarding exhaust position as
needed to initiate Operator Commanded
Regeneration. Be sure to understand each
prompt. If you are not sure what is being
asked by each prompt, contact an
authorized dealer. The display will confirm
the operation has started and when it has
finished. You can also drive to clean the
filter. See Active regeneration earlier in this
chapter. The service engine soon light will
illuminate and the following
message
EXH OVER LIMIT
SERVICE NOW will appear when the
system is at the point of oversaturation.
You will not be able to allow cleaning. You
must have your vehicle serviced by an
authorized dealer. Once operator commanded regeneration
starts, the engine
’s rpm will rise to
approximately 2,000 - 2,400 rpm and the
cooling fan will increase speed; you will
hear a change in audible sound due to the
fan and engine speed increase.
It is not necessary to open the hood on the
engine compartment. Once operator
commanded regeneration is complete, the
engine rpm and fan will return to normal
idling. The exhaust system will remain very
hot for several minutes even after
regeneration is complete. Do not reposition
the vehicle over materials that could burn
until the exhaust system has had sufficient
time to cool. Depending on the amount of
soot collected by the diesel particulate
filter, ambient temperature, and altitude,
operator commanded regeneration may
last from 10 to 25 minutes.
How to interrupt or cancel Operator
Commanded Regeneration
If you need to cancel the operator
commanded regeneration, pressing the
brake, accelerator, or shutting off the
vehicle will stop the procedure. Depending
on the amount of time you allowed the
operator commanded regeneration to
operate, soot may not have had sufficient
time to be eliminated, but the exhaust
system and exhaust gas may still be hot.
If you shut your vehicle off during operator
commanded regeneration, you will notice
turbo flutter. This is a normal consequence
caused by shutting off a diesel engine
during boosted operation and is considered
normal.
Filter service and maintenance
Over time, a slight amount of ash will build
up in the diesel particulate filter, which is
not removed during the regeneration
process. The filter may need to be removed
for ash cleaning at approximately 120,000
miles (193,000 km) or greater (actual
mileage can vary greatly depending upon
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Super Duty (TFA) Fuel and Refueling
