2012 Ford F550 Cab Diesel Supplement 3rd Printing - Page 62

2012 Ford F550 Cab Manual

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Maintenance and Specifications eliminated, but the exhaust system and exhaust gas may still be hot. If the vehicle is shut off during OCR, 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/maintenance Over time a slight amount of ash will build up in the DPF which is not removed during the regeneration process. The DPF 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 engine/vehicle operating conditions) and replaced with a new or remanufactured (ash cleaned) part. The filter may need to be replaced at approximately 250,000 miles (400,000 km) depending upon engine/vehicle operating conditions. In both cases the engine control to inform you to bring the vehicle to system will set a service light the dealer for service. If there are any issues with the oxidation catalyst/DPF system a service or will be set by the engine control system to inform light you to bring the vehicle into your authorized dealer for service. Resonator/Tailpipe assembly maintenance The diesel resonator tail-pipe assembly is a uniquely functioning device that accompanies the Oxidation Catalyst/DPF assembly. The assembly serves multiple functions. First it serves as an acoustic device to attenuate exhaust noise. Second it provides an exit path for the exhaust from the vehicle. It also is designed to help control the temperature of the exhaust during DPF regeneration events. The visible holes in each leg of the twin tip and the holes under the shield just inboard of the right rear tire(s) are functional. The holes need to be kept clear of mud/debris or foreign material to maintain proper function of the exhaust system. Clean and remove debris or foreign material if present as needed. Spraying with a hose during regular washing of vehicle should help keep holes clean and clear of debris or foreign material. Note: Additions of aftermarket devices or modifications to the exhaust system can reduce the effectiveness of the exhaust system as well as cause damage to the exhaust system and/or engine. These actions may also affect the vehicle's warranty. See the Warranty Guide for more information. 62 2012 Diesel (67l) Supplement, 3rd Printing USA (fus)

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eliminated, but the exhaust system and exhaust gas may still be hot. If
the vehicle is shut off during OCR, 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/maintenance
Over time a slight amount of ash will build up in the DPF which is not
removed during the regeneration process. The DPF 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
engine/vehicle operating conditions) and replaced with a new or
remanufactured (ash cleaned) part. The filter may need to be replaced
at approximately 250,000 miles (400,000 km) depending upon
engine/vehicle operating conditions. In both cases the engine control
system will set a service light
to inform you to bring the vehicle to
the dealer for service.
If there are any issues with the oxidation catalyst/DPF system a service
light
or
will be set by the engine control system to inform
you to bring the vehicle into your authorized dealer for service.
Resonator/Tailpipe assembly maintenance
The diesel resonator tail-pipe assembly is a uniquely functioning device
that accompanies the Oxidation Catalyst/DPF assembly. The assembly
serves multiple functions. First it serves as an acoustic device to
attenuate exhaust noise. Second it provides an exit path for the exhaust
from the vehicle. It also is designed to help control the temperature of
the exhaust during DPF regeneration events. The visible holes in each
leg of the twin tip and the holes under the shield just inboard of the
right rear tire(s) are functional. The holes need to be kept clear of
mud/debris or foreign material to maintain proper function of the
exhaust system. Clean and remove debris or foreign material if present
as needed. Spraying with a hose during regular washing of vehicle should
help keep holes clean and clear of debris or foreign material.
Note:
Additions of aftermarket devices or modifications to the exhaust
system can reduce the effectiveness of the exhaust system as well as
cause damage to the exhaust system and/or engine. These actions may
also affect the vehicle’s warranty. See the
Warranty Guide
for more
information.
Maintenance and Specifications
62
2012 Diesel
(67l)
Supplement, 3rd Printing
USA
(fus)