2015 Ford F450 Super Duty Crew Cab Diesel Supplement Printing 1 - Page 22

2015 Ford F450 Super Duty Crew Cab Manual

Page 22 highlights

Fuel and Refueling • Low fuel operation: If the low fuel pressure message appears when your vehicle is warm and during low fuel tank level operation (near empty), refuel your 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 low fuel pressure message appears during normal operation when the engine is fully warm, and fuel level is not low, you must change the fuel filters 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 an authorized dealer. Refer to Motorcraft part numbers in the Capacities and Specifications chapter for the fuel filter replacement part number. See Motorcraft Parts (page 55). This part number includes filters and seals for both the engine-mounted and frame-mounted filters. Removal - Diesel Fuel Conditioner Module filter The diesel fuel conditioner module filter is located in the lower portion of the housing. 1. Drain the diesel fuel conditioner module. See Draining the Fuel and Water Separator earlier in this chapter. 2. Remove the lower portion of the diesel fuel conditioner module housing (filter bowl) by turning it counterclockwise using a 32 mm socket. • • Changing the Engine-Mounted and Diesel Fuel Conditioner Module Fuel Filters Your vehicle is equipped with two fuel filters. The first filter mounts on top of the engine on the driver's side. The second filter, inside the diesel fuel conditioner module, is mounted on the frame rail under the driver's side floorboard near the transmission. You should replace both filters 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 fuel injection system damage. Refer to the scheduled maintenance information of this supplement for more information. See General Maintenance Information (page 59). E163361 Note: Depending on the amount of 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. 19 Super Duty (TFA) , enUSA

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Low fuel operation: If the low fuel
pressure message appears when your
vehicle is warm and during low fuel
tank level operation (near empty),
refuel your 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 low fuel
pressure message appears during
normal operation when the engine is
fully warm, and fuel level is not low,
you must change the fuel filters
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 an
authorized dealer.
Changing the Engine-Mounted and
Diesel Fuel Conditioner Module Fuel
Filters
Your vehicle is equipped with two fuel
filters. The first filter mounts on top of the
engine on the driver’s side. The second
filter, inside the diesel fuel conditioner
module, is mounted on the frame rail under
the driver’s side floorboard near the
transmission. You should replace both
filters 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 fuel
injection system damage. Refer to the
scheduled maintenance information of this
supplement for more information. See
General Maintenance Information
(page 59).
Refer to Motorcraft part numbers in the
Capacities and Specifications chapter for
the fuel filter replacement part number.
See
Motorcraft Parts
(page 55). This part
number includes filters and seals for both
the engine-mounted and frame-mounted
filters.
Removal - Diesel Fuel Conditioner
Module filter
The diesel fuel conditioner module filter is
located in the lower portion of the housing.
1.
Drain the diesel fuel conditioner
module. See Draining the Fuel and
Water Separator earlier in this chapter.
2.
Remove the lower portion of the diesel
fuel conditioner module housing (filter
bowl) by turning it counterclockwise
using a 32 mm socket.
E163361
Note:
Depending on the amount of 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.
19
Super Duty (TFA) , enUSA
Fuel and Refueling