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