2013 FORD SUPER DUTY fuel filter

FUEL FILTER/WATER SEPARATOR
Diesel Fuel Conditioner Module (DFCM)
The vehicle is equipped with a diesel fuel conditioning module (DFCM)
located on the frame-rail under the driver-side floorboard near the
transmission
Water should be drained from the
module assembly whenever the
warning light comes on and the
message center directs you to drain the water separator. This will occur
when approximately 0.32 pints (150 ml) of water accumulates in the
module. If water level is allowed to exceed this level, the water may be
passed through to the engine and may cause fuel injection equipment
damage.
Draining the DFCM
WARNING:The vehicle must be stopped with the engine off
when draining the DFCM. Fuel may ignite if the separator is
drained while the engine is running or vehicle is moving.
Note:Air will enter into the fuel system if the DFCM is drained while
the system is running. The engine will not operate properly if air enters
the system.
Note:With fuel tank levels above
34tank it may be necessary to loosen
the bowl 3 turns before opening the drain. This will actuate an
anti-siphon valve at the DFCM inlet and prevent the fuel from siphoning
out of the tank.
Note:A loose drain valve can allow air to enter the fuel system and
cause drivetrain issues. The engine will not operate properly. Be sure
that the drain valve is fully tightened.
1. Stop the vehicle andshut offthe engine.
2. Locate the DFCM and place an appropriate container under the drain
port (see illustration).
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3. Rotate the drain counterclockwise
until the O-ring is visible. Allow the
DFCM to drain for approximately
25 seconds or until clean fuel is
observed. Rotate the drain clockwise
to tighten it. If no liquid drains, the
drain may be clogged. Have the
DFCM serviced by your authorized
dealer.
4. Make sure that the drain valve is fully tightened, then remove the
container from under the vehicle.
5. Restart the engine. TheWATER IN FUEL DRAIN FILTERor
WATER IN FUEL DRAIN FILTER SEE MANUALmessage and light
should not be illuminated. If they continues to illuminate, have the fuel
system checked and repaired.
LOW FUEL PRESSURE MESSAGE
The engine is equipped with a low fuel pressure detection system. If the
message center displays:LOW FUEL PRESSUREthe following
explains why and what to do:
•Cold start or cold operation (below 32°F (0°C): If this message
appears during a cold start or during cold operation up to 10 minutes
after the initial cold start, monitor the message center. If it disappears
and does not re-appear after the engine has fully warmed up, the low
fuel pressure message is most likely caused by waxed or gelled fuel.
Do not use alcohol based additives to correct fuel gelling. This may
result in damage to the fuel injectors/systems. Use an anti-gel additive
as listed in theCapacities and Specificationschapter. The customer
warranty may be void from using additives that do not meet or exceed
Ford specifications.
If the low fuel pressure message persistently appears after re-fueling
during the cold start and cold operation conditions defined previously
and then disappear when the engine has fully warmed up, consider
different fuel sources.
•Low fuel operation: If the message appears when the vehicle is warm
and during low fuel tank level operation, i.e. the tank level is at or
very near empty, refuel the vehicle and operate the vehicle. If the
message reappears after fueling, see below. If the message does not
come back, the low fuel pressure condition was due to low fuel levels
in the fuel tank.
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•Normal operation: If the message appears during normal operation
when the vehicle / engine is fully warm, and fuel level is not low, the
fuel filters must be changed regardless of the maintenance schedule
interval.
•If replacement of the fuel filter does not remedy the low fuel pressure
message during normal operation as defined above, take the vehicle to
your authorized dealer.
CHANGING THE ENGINE-MOUNTED AND DFCM FUEL FILTERS
Your vehicle is equipped with two fuel filters; one is mounted on top of
the driver’s side of the engine and the second filter, inside the DFCM, is
mounted on the frame rail under the driver-side floorboard near the
transmission. Both filters should be replaced at the same time. Regular
fuel filter changes are an important part of engine maintenance; failing to
keep with the scheduled maintenance could lead to engine performance
issues and/or fuel injection system damage. Refer to thescheduled
maintenance informationof this supplement for more information.
Refer toMotorcraft part numbersin theMaintenancechapter for the
fuel filter replacement part number. This part number includes filters
and seals for both the engine-mounted and frame-mounted filters.
Removal - DFCM filter
The DFCM filter is located in the lower portion of the DFCM housing.
1. Drain the DFCM. SeeFuel filter/water separatorin theFuel and
Refuelingchapter.
To install the new DFCM filter, seeInstallation – DFCM filterin the
Fuel and Refuelingchapter.
2. Remove the lower portion of the
DFCM housing (filter bowl) by
turning it counterclockwise using a
32 mm socket.
Note:Depending on the amount
seal swelling, removal of the filter
bowl may be noisy and require some
effort. Replace the seal prior to
reinstalling the filter/bowl to
improve assembly.
3. Remove and discard the old fuel filter element.
4. Carefully clean the mating surfaces using a lint-free rag.
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Installation – DFCM filter
1. Install the new filter into the filter bowl tabs and replace the seal on
the DFCM header (top portion of DFCM). Refer toMotorcraft part
numbersin theMaintenancechapter for the fuel filter kit part number.
2. Lube O-ring with lubricant packet in the filter kit. This will assist in
making sure the filter gets properly tightened.
3. Reinstall the lower portion of the
housing by slowly turning it
clockwise onto DFCM housing,
allowing fuel to soak into the fuel
filter element. Tighten the lower
housing until it contacts the
mechanical stop.
Note:The engine will not run
properly if the DFCM fuel filter is
not installed in the housing or if the
filter bowl is not tightened to the
mechanical stop.
The system will need to be purged of air after removal/changing of the
filter. SeePurging air from the fuel system after DFCM and engine
mounted fuel filter replacementfollowing.
Removal - Engine-mounted fuel filter
The engine-mounted fuel filter is a plastic disposable cartridge. To
remove it, do the following:
1. Disconnect both fuel lines by
squeezing the connector tabs and
pulling the lines straight off.
Note:Although the fuel system is
not fully pressurized when the
vehicle is off, some residual
pressure may remain in the fuel
system since it can take some time
for the pressure to completely bleed
off. Therefore, it is recommended to
place a shop rag below the filter
connectors to absorb the small amount of fuel that will drain.
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2. Rotate the filter fully
counterclockwise until the peg is at
the far end of the slot.
3. Pull the filter straight up from the bracket and discard the filter.
Installation – Engine-mounted fuel filter
1. Install the new filter into the filter bracket. Turn the filter clockwise to
lock it in place.
2. Reconnect both fuel lines.
Using a fuel which has more than average impurities may require
the fuel filter to be replaced more frequently than the service
interval specifies.
The system will need to be purged of air after removal/changing of the
filter. SeePurging air from the fuel system after DFCM and
engine-mounted fuel filter replacementfollowing.
Purging air from the fuel system after DFCM and engine mounted
fuel filter replacement
Turn the ignition key to on for 30 seconds, then turn it to off. Do this a
total of six times in a row to purge any trapped air from the fuel system.
After filter service, a no start or rough running engine may indicate that
air is entering the system through the filter bowl seal or drain. Make sure
the drain is tight and the filter bowl has been tightened to the
mechanical stop.
DIESEL EXHAUST SYSTEM: OXIDATION CATALYST/DIESEL
PARTICULATE FILTER SYSTEM
Your vehicle is equipped with a diesel particulate filter (DPF). The DPF
is an inline filter in the exhaust system which reduces carbon emissions
by trapping exhaust particles before they reach the tailpipe. The DPF
looks similar to a traditional exhaust catalyst, except larger, and is part
of the exhaust system under the vehicle. The DPF is coupled to a diesel
oxidation catalyst, that reduces the amount of harmful exhaust emitted
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from the tailpipe. As soot gathers in the system it begins to restrict the
filter. The soot gathered inside the filter needs to be periodically cleaned.
The soot can be cleaned in two different ways; passive regeneration and
active regeneration. Both methods occur automatically and require no
actions from the driver/operator. During either one of these regeneration
methods you may notice an increase/change in exhaust noise/tone. At
certain times, the message center will display various messages related
to the DPF. See theInformation Displayschapter in theOwner Guide
for more information.
Passive regeneration
In passive regeneration, the exhaust constituents / temperature are at an
appropriate level where some soot can be reduced or oxidized (burned)
thus cleaning the filter. This method occurs naturally as a result of
normal engine operating conditions (at varying levels due to drive
patterns).
Active regeneration
Note:Do not disregard theDRIVE TO CLEAN EXHAUST FILTERor
Drive to Clean Exhaust Systemmaintenance message for extended
periods of time. Failure to perform active or operator commanded
regeneration (OCR) (if equipped) when instructed may result in a
clogged DPF. If your DPF fills beyond what can be safely regenerated,
active regeneration and OCR will be disabled. This could cause
irreversible damage to the DPF, requiring service and possible
replacement that may not be covered by your warranty.
Once the DPF is full of exhaust particles, the engine control module will
command the exhaust system to clean the DPF through a process called
active regeneration. Active regeneration requires the engine computer to
raise the exhaust temperature to eliminate the particles. During cleaning,
the particles are converted to harmless gasses, and the DPF will then be
clean and ready to continue trapping exhaust particles.
The regeneration process operates more efficiently when the vehicle is
safely operated at least 30 mph (48 km/h) with a steady pedal for
approximately 20 minutes to complete the process. The frequency and
duration of regeneration will fluctuate as both are determined by how
you drive your vehicle, outside air temperature, and altitude. For most
driving, regeneration frequency will vary from 100 - 500 miles (161 -
805 km) between occurrences and each occurrence will last from 9 -
20 minutes. The duration of regeneration is usually reduced if a constant
speed above 30 mph (48 km/h) is maintained.
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When the engine control module detects that the DPF is nearly full of
particulates and that the vehicle is not being operated in a manner to
allow effective automatic cleaning, the information display will display
DRIVE TO CLEAN EXHAUST FILTERfor base information display
andDrive to Clean Exhaust Systemfor the optional information
display, guiding the vehicle operator to drive in order to clean the DPF. If
the vehicle is operated in a manner to allow effective automatic cleaning,
the information display will display a cleaning exhaust filter message,
which is the normal regeneration process. See theInformation Displays
chapter of theOwner Guidefor more information.
You can also choose OCR to clean the exhaust system at this point. See
How to start operator commanded regeneration (OCR)later in this
chapter.
If the operator is not able to drive in a manner that allows effective
automatic cleaning (active regeneration) or the operator instead wishes
to perform regeneration of the DPF (cleaning) while at idle (stationary),
then OCR (operator commanded regeneration) will need to be
performed. SeeOperator commanded regeneration (OCR)following.
Operator Commanded Regeneration (OCR) (if equipped)
If your vehicle is operated with significant stationary operation, low
speed drive cycles less then 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 DPF system. OCR
allows you to manually start regeneration of the diesel particulate filter
(DPF) at idle (while stationary) to clean the DPF. If you are not sure
whether your vehicle is equipped with this feature, contact your
authorized dealer.
When to perform OCR
Use the OCR feature when theDRIVE TO CLEAN EXHAUST FILTER
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 DPF while the vehicle is idle (stationary).
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Base information display procedure
1. Start with the vehicle engine fully warmed.
2. Press the Info button on the steering wheel until the information
display reads one of the following choices:
•If the DPF needs cleaning and the vehicle is warmed up, a message
requesting permission to initiate filter cleaning will be displayed
EXHST XX% FULL CLEAN Y/NorEXHAUST FILTER FULL.
Answer yes to this prompt and then follow the prompts regarding
exhaust position as needed to initiate OCR. Be sure to understand
each prompt. If you are not sure what is being asked by each prompt,
contact your authorized dealer. The display will confirm the operation
has started and when it has finished.
•If the vehicle is warmed up, the
powertrain fault indicator will
illuminate and messages
requesting permission to initiate filter cleaning will be displayed
DRIVE TO CLEAN EXHAUST FILTER+EXH OVERLOADED
CLEAN? Y/N. Answer yes to this prompt and then follow the
prompts regarding exhaust position as needed to initiate OCR. Be sure
to understand each prompt. If you are not sure what is being asked by
each prompt, contact your authorized dealer. The display will confirm
the operation has started and when it has finished. You can also drive
to clean the filter. SeeActive regenerationearlier in this chapter.
•The service engine soon light will
illuminate and the following
messagesEXH OVERLOADED
CLEAN? Y/N+REDUCED ENGINE POWERwill appear when the
system is at the point of oversaturation you will not be able to allow
cleaning . The vehicle must be serviced by an authorized dealer.
3. Once OCR 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
OCR 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 DPF, ambient
temperature, and altitude, OCR may last from 10 to 25 minutes.
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