• The fuel injection pump is replaced.
• The ECM is replaced.
For the correct procedure to prime the fuel system,
refer to Systems Operation, Testing and Adjusting,
“Fuel System - Prime”.
Primary Filter/Water Separator
Illustration 35 g02214535
Typical example
The primary filter/water separator (1) is located
between the electric lift pump and the secondary fuel
filter. The primary filter/water separator (1) provides a
10 micron filtration level.
The primary filter/water separator can either be
engine mounted or supplied loose. The primary filter/
water separator is supplied with water in fuel sensor
(2).
Secondary Fuel Filter
Illustration 36 g03723527
Typical example
The secondary fuel filter (1) is located after the
primary fuel filter. The secondary fuel filter (1)
provides a 4 micron filtration level.
Fuel Pump Assembly
Illustration 37 g02450146
Typical example
44 UENR4490-01
Engine Operation
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