2012 FORD SUPER DUTY Diesel Supplement Manual

5. Once the level in the DEF bottle
has stopped dropping, return the
container to the vertical position
slightly below the DEF filler port
and let any DEF drain out of the
spout. DO NOT try to continue to
add DEF to the tank by shaking or
repositioning the container to
induce flow. This may cause spilling
and overfill the tank. Overfilling the
DEF tank can cause damage to the
tank.
6. Once the spout has drained, remove the spout from the DEF filler
port and install the blue cap on the DEF filler port.
7. Remove the spout from the DEF container and install the cap back on
the bottle.
8. If the container is empty, discard the empty container, or recycle if
possible. If there is DEF left in the container, retain it for later use. The
spout is re-useable; after use, rinse it with clean water and store the
spout to ensure it is kept clean. Do not use the DEF spout with any
other chemicals.
9. Wipe away any DEF that has spilled on painted surfaces with water
and a damp cloth.
•DEF filling station nozzle fill:
Filling the DEF tank using a nozzle is similar to a normal fuel fill. The
nozzle will shut off automatically when the tank is full. Do not continue
to fill the tank as this may cause spilling and overfill the tank which can
cause damage.
Note:Some filling station nozzles may prevent filling of your DEF tank
due to a magnetic mechanism in the nozzle. This is not a problem with
your vehicle. To refill your tank either locate another filling station or
use a bottle to refill the tank.
Filling the DEF tank in cold climates
DEF will freeze below 12°F (-11°C); however, your vehicle is equipped
with an automatic preheating system which allows the DEF system to
operate below 12°F (-11°C). When the vehicle is not in operation for an
extended period of time with temperatures at or below 12°F (-11°C), the
DEF tank could freeze. If the tank is OVERFILLED and freezes, it could
be damaged, therefore DO NOT OVERFILL.
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To prevent overfilling of the DEF tank when filling with a bottle, Ford
recommends using MotorcraftDEF. Additionally, if the message center
indicatesEXHAUST FLUID UNDER 1/2 FULL, you should only add a
MAXIMUM of 2 gallons (6.7L) of DEF to the tank to prevent freeze
damage due to overfilling. If the message center indicatesEXHAUST
FLUID LEVEL OK, do not add DEF.
Contaminated DEF or inoperative SCR system
SCR systems are sensitive to
contamination of the DEF. USE
ONLY API or ISO 22241 CERTIFIED
DIESEL EXHAUST FLUID. If the
SCR becomes contaminated or
inoperative, the DEF light will
illuminate and exhaust fluid system
fault messages will appear in the
message center.
Continued driving without replacing DEF or having the SCR system
repaired will result in the following actions as required by the California
Air Resources Board (CARB) and /or U.S. Environmental Protection
Agency (EPA):
•Within a certain number of miles (kilometers) to empty, speed will be
limited upon restart. Prior to this occurring a message will appear in
the message center.
•Further vehicle operation without replacing contaminated DEF will
cause the engine to enter an idle-only condition. This will only occur
upon vehicle refueling, vehicle idling in park for 1 hour, or engine
shutdown for 10 minutes or more and will be indicated by a message
in the message center indicating required actions to resume normal
operation.
For either vehicle speed limiting or idle-only condition, normal vehicle
operation will resume when the contaminated system is repaired.To
service a contaminated or inoperative system, see your
authorized dealer.
DEF guidelines and information
•Use only DEF that carries the trademark: American Petroleum
Institute (API) certified DEF or ISO 22241.
•Do not put DEF in the diesel fuel tank.
•Do not overfill the DEF tank.
•Do not re-use the DEF container or nozzle once it is emptied.
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•Avoid spilling DEF on painted surfaces, carpeting or plastic
components. Immediately wipe away any DEF that has spilled with a
damp cloth and water. If it has already crystallized, use warm water
and a sponge.
•Store DEF out of direct sunlight and in temperatures between 23°F
(-5°C) — 68°F (20°C).
•DEF will freeze below 12°F (-11°C).
•Do not store DEF bottle in vehicle. If it leaks it could cause damage to
interior components or release an ammonia odor inside the vehicle.
•DEF is non-flammable, non-toxic, colorless and water-soluble liquid.
•Do not dilute DEF with water or any other liquid.
•An ammonia odor may be smelled when the cap is removed or during
refill. Refill DEF in a well ventilated area.
Typical Diesel Exhaust Fluid (DEF) Usage
The charts below illustrateapproximateDEF usage for the given
distances traveled under various driving conditions and when using the
PTO. Your usage may vary depending on: driving style, trailer towing,
loaded vehicle weight, weather, idle time, PTO usage, etc.
Pick-up (3.31 axle ratio)
Driving
styleTrailer towing /
aggressive or city
drivingNormal drivingSteady highway
driving
DEF
usage4100 miles
(6598 km) –
7100 miles
(11426 km)7100 miles
(11426 km) –
9600 miles
(15450 km)9600 miles
(15450 km) –
10000 miles
(16093 km) +
Pick-up (3.55 axle ratio)
Driving
styleTrailer towing /
aggressive or city
drivingNormal drivingSteady highway
driving
DEF
usage2800 miles
(4506 km) –
5800 miles
(9334 km)5800 miles
(9334 km) –
8100 miles
(13036 km)8100 miles
(13036 km) –
9700 miles
(15611 km)
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Pick-up (3.73 axle ratio)
Driving
styleTrailer towing /
aggressive or city
drivingNormal drivingSteady highway
driving
DEF
usage2050 miles
(3299 km) –
5050 miles
(8127 km)5050 miles
(8127 km) –
7300 miles
(11748 km)7300 miles
(11748 km) –
8900 miles
(14323 km)
Pick-up (4.30 axle ratio)
Driving
styleTrailer towing /
aggressive or city
drivingNormal drivingSteady highway
driving
DEF
usage1100 miles
(1770 km) –
4100 miles
(6598 km)4100 miles
(6598 km) –
6300 miles
(10139 km)6300 miles
(10139 km) –
7900 miles
(12714 km)
Chassis cab (non–PTO)
Driving
styleTrailer towing /
aggressive or city
drivingNormal drivingSteady highway
driving
DEF
usage1700 miles
(2736 km) –
4700 miles
(7564 km)4700 miles
(7564 km) –
7800 miles
(12553 km)7800 miles
(12553 km) –
9300 miles
(14967 km)
Chassis cab (with PTO)
PTO
usage<---Cont. PTO usage — Min. PTO usage--->
DEF
usage0 miles (0 km) — 7800 miles (12553 km)
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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
1. Stop the vehicle andshut offthe engine.
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.
2. Locate the DFCM and place an appropriate container under the drain
port (see illustration).
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.
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4. Make sure that the drain valve is fully tightened, then remove the
container from under the vehicle.
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.
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 inMaintenance product specifications and capacities
section in this chapter. 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.
•
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.
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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 numberslater in this chapter 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 separatorearlier in this
chapter.
To install the new DFCM filter, seeInstallation – DFCM filterlater in
this section.
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
numberslater in this chapter for the fuel filter kit part number.
2. 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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