2011 Ford F450 Super Duty Crew Cab Diesel Supplement 5th Printing - Page 40

2011 Ford F450 Super Duty Crew Cab Manual

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Maintenance and Specifications Refer to Motorcraft part numbers later 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. See Fuel filter/water separator earlier in this chapter. To install the new DFCM filter, see Installation - DFCM filter later 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. 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 to Motorcraft part numbers later 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. The system will need to be purged of air after removal/changing of the filter. See Purging air from the fuel system after DFCM and engine mounted fuel filter replacement following. 40 2011 Diesel (eco) Supplement, 5th Printing USA (fus)

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Refer to
Motorcraft part numbers
later 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. See
Fuel filter/water separator
earlier in this
chapter.
To install the new DFCM filter, see
Installation – DFCM filter
later 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.
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 to
Motorcraft part
numbers
later 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.
The system will need to be purged of air after removal/changing of the
filter. See
Purging air from the fuel system after DFCM and engine
mounted fuel filter replacement
following.
Maintenance and Specifications
40
2011 Diesel
(eco)
Supplement, 5th Printing
USA
(fus)