WHAT IS THE DIESEL
PARTICULATE FILTER
The diesel particulate filter is part of your
vehicle's emissions system and filters
harmful diesel particulates from the
exhaust gas.
HOW DOES THE DIESEL
PARTICULATE FILTER WORK
The diesel particulate filter reduces carbon
emissions by trapping exhaust particles
before they reach the tailpipe. The system
must periodically clean the exhaust
particles that gather inside the filter. This
is carried out in three ways, passive
regeneration, active regeneration and
manual regeneration.
Passive Regeneration
In passive regeneration, the normal
exhaust system temperature cleans the
filter by oxidizing the soot. Cleaning occurs
during normal vehicle operating conditions
due to driving patterns.
Active Regeneration
Once the diesel particulate filter is full,
active regeneration raises the exhaust
temperature to eliminate the particles.
During cleaning, the particles convert to
harmless gasses.
When the engine control module detects
that the diesel particulate filter is nearly
full of particulates, and you are not
operating your vehicle in a manner to allow
effective regeneration, messages appear
in the information display as a reminder
for you to drive your vehicle in order to
clean the diesel particulate filter. If you
drive your vehicle in a manner to allow
effective regeneration, the information
display shows a cleaning exhaust filter
message.
DIESEL PARTICULATE FILTER
PRECAUTIONS
WARNING:
Do not park or idle your
vehicle over dry leaves, dry grass or other
combustible materials. The regeneration
process creates very high exhaust gas
temperatures and the exhaust will
radiate a considerable amount of heat
during and after regeneration and after
you have switched the engine off. This is
a potential fire hazard.
WARNING:
When the
Exhaust
Filter Cleaning
message appears in the
information display, do not park near
flammable materials, vapors or
structures until filter cleaning is
complete.
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. Use special care when
working around the diesel oxidation
catalytic converter or the diesel
particulate filter. The diesel oxidation
catalytic converter and the diesel
particulate filter heat up to very high
temperatures after only a short period
of engine operation and remain hot after
you switch the engine off.
Note:
Avoid running out of fuel.
Note:
During regeneration at low speed or
engine idle, you may smell a hot metallic
odor and could notice a clicking metallic
sound. This is due to high temperatures
reached during regeneration and is normal.
Note:
Changes in the engine or exhaust
sound may be heard during the regeneration
process.
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2022 Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202103, First-Printing
Diesel Particulate Filter
