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Maintenance and Specifications
DIESEL PARTICULATE FILTER (DPF)
Your vehicle is equipped with a diesel particulate filter (DPF), as part of
the after-treatment exhaust system, to trap soot and other large particles
produced by the engine combustion process. The soot that accumulates
in the filter must be periodically reduced to ash to prevent excessive
exhaust restriction. The soot reduction process, also known as "filter
regeneration," is generally performed automatically by your engine and
after-treatment system.
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 particulate filter. The DPF heats up to
a high temperature after only a short period of engine operation, and
can remain hot even after the engine is turned off. Failure to follow
these instructions may result in serious personal injury.
Diesel particulate filter regeneration
Under most operating conditions, DPF regeneration will be transparent
to the operator. A small increase in engine/turbo sound-level is normal
during filter regeneration. If, however, your engine is operated for
extended periods of time under one of the following conditions, operator
assistance may be required to facilitate the filter regeneration process:
• Vehicle is operated in stop-and-go traffic and/or maintains low speeds
as in a city/delivery driving
• Engine is started and shut-off frequently
• Vehicle payload is relatively light
• Vehicle is regularly operated in cold ambient temperatures (i.e. below
0°F [-18°C])
Diesel Particulate Filter Four–Level Loading Chart
Level/Lamp status
Level 1
DPF lamp solid
Level 2
DPF lamp flashing
(once per second)
210
2011 F-650/750 (f67)
Supplement, 2nd Printing
USA (fus)
Filter status
Regeneration required.
Nearly full. Engine
performance is limited.
Requested action
Drive on highway at
highway speeds OR
start "parked
regeneration" to
prevent loss of engine
performance.
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