2003 Ford Excursion Diesel Supplement 2nd Printing - Page 25

2003 Ford Excursion Manual

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General maintenance information If air is allowed to enter the fuel system (during fuel filter change or if you run out of fuel) the engine will purge the trapped air as it runs. The engine may run rough and produce white smoke while air is in the system. This is normal and should correct itself in a short time. An engine that suddenly becomes noisy or operates poorly after a fuel fill could be using substandard fuel (i.e., high water content, low cetane rating or gasoline in the fuel). Diesel fuel should be purchased from a reputable station which sells a large amount of Diesel fuel. Care should be taken whenever Diesel fuel is stored. Use only clean, approved containers which will prevent the entry of dirt or water. Diesel fuel must not be stored in a galvanized container. The fuel will dissolve the zinc in a galvanized container. The zinc will then remain in solution until it is run through the engine where it will be deposited in the fuel injectors causing expensive-to-repair damage. Diesel fuel dispensing nozzle fill rate This truck is equipped with a fuel fill pipe which is able to accept fuel up to 20 gallons per minute from an 1 1/8 inch fuel dispensing nozzle. Pumping fuel at greater flow rates may result in premature nozzle shut-off or spitback. 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. 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. The Motorcraft part number for the replacement filters is FD-4604. 25

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If air is allowed to enter the fuel system (during fuel filter change or if
you run out of fuel) the engine will purge the trapped air as it runs. The
engine may run rough and produce white smoke while air is in the
system. This is normal and should correct itself in a short time.
An engine that suddenly becomes noisy or operates poorly after a fuel fill
could be using substandard fuel (i.e., high water content, low cetane
rating or gasoline in the fuel). Diesel fuel should be purchased from a
reputable station which sells a large amount of Diesel fuel.
Care should be taken whenever Diesel fuel is stored. Use only clean,
approved containers which will prevent the entry of dirt or water.
Diesel fuel must not be stored in a galvanized container. The fuel will
dissolve the zinc in a galvanized container. The zinc will then remain in
solution until it is run through the engine where it will be deposited in
the fuel injectors causing expensive-to-repair damage.
Diesel fuel dispensing nozzle fill rate
This truck is equipped with a fuel fill pipe which is able to accept fuel up
to 20 gallons per minute from an 1 1/8 inch fuel dispensing nozzle.
Pumping fuel at greater flow rates may result in premature nozzle
shut-off or spitback.
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.
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. The Motorcraft part number for the
replacement filters is FD-4604.
General maintenance information
25