Service Points - HFCM and Fuel Filters
* HFCM Drain Procedure * Removing HFCM Filter * Removing Engine Mounted Filter * Installation of Both Filters *

* Fuel Filters Picture and Prices * Fuel Supply System (6.0L Bible)

HORIZONTAL FUEL CONDITIONING MODULE (HFCM) (FUEL FILTER/WATER SEPARATOR)

The vehicle is equipped with a Horizontal Fuel Conditioning Module (HFCM) located on the frame-rail under the driver-side floorboard near the transmission.
26-Dec-03 14,775 miles: First Fuel Filter Change.
Water should be drained from the module assembly whenever the warning light comes on. The WATER IN FUEL light will come on when approximately 100 cc (0.2 pints) of water accumulates in the module.
Replace the fuel filters with Ford Part No. 3C3Z-9N184-CA. This part number includes filters and seals for both the engine-mounted and frame-mounted filters.
DRAINING THE HFCM AND CHANGING THE FUEL FILTERS

Your vehicle is equipped with two fuel filters; one mounted on top of the engine and the other, the HFCM, mounted inside the frame rail under the driver-side floorboard near the transmission. Both filters should be replaced at the same time.

HFCM drain procedure

1.Stop the vehicle and shut off the engine.

2.Locate the HFCM and place an appropriate container under the drain plug (see illustration).
3.Remove the drain plug, using a 6mm hex drive, by turning it counterclockwise. Allow the HFCM to drain for approximately 25 seconds or until clean fuel is observed. Install the drain plug by turning it clockwise until it is firmly seated.
4.Verify that the drain plug is closed and sealed, then remove the container from under the vehicle.
5.Restart the engine and check WATER IN FUEL indicator light; it should not be illuminated. If it continues to illuminate, have the fuel system checked and repaired.
Removal -HFCM filter

1. Remove the fuel fIlter cap by turning counterclockwise.

2. Remove and discard the old fuel filter element.

3. Carefully clean the mating surfaces.

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Removal -Engine-mounted fuel filter

1. Remove the fuel filter cap by turning counterclockwise.

2. Remove and discard the old fuel filter element.

3. Carefully clean the mating surfaces.

Installation-both

The engine will not run properly if the fuel filter is not installed in housing.

1. Install the new fuel filter and cap seal (from Ford Part No. 3C3Z-9NI84-CA) into the fuel filter housing.

2. Tighten cap onto fuel filter housing slowly, allowing fuel to soak into the fuel filter element. Tighten cap until it contacts the housing.

After replacing the fuel filter, the engine will purge the trapped air as it runs. The engine may run roughly and smoke until the air is completely eliminated.

Using a fuel which has more than average impurities may require the fuel filter to be replaced more frequently than the service interval specifies.

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Racor Fuel Filter Ford Powerstroke 6.0L

Diesel Injection Service: $42.02

Price last checked: March 15, 2003

Motorcraft FD-4604 Fuel Filter Kit.

ShopDiesel.com: $52.16

Price last checked: March 15, 2003

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* HFCM Drain Procedure * Removing HFCM Filter * Removing Engine Mounted Filter * Installation of Both Filters *

* Fuel Filters Picture and Prices * Return to Top of Page *


Created: March 15, 2003

Page Last Updated: Feb 5, 2004

D. Pruyn