Dodge dakota 2002 Service Manual page 1782

DR
FUEL CONTROL ACTUATOR
DESCRIPTION
The Fuel Control Actuator (FCA) is located at the
rear of the high-pressure, fuel injection pump.
OPERATION
The Fuel Control Actuator (FCA) is an electroni-
cally controlled solenoid valve. The ECM controls the
amount of fuel that enters the high-pressure pumping
chambers by opening and closing the FCA based on a
demanded fuel pressure. When the FCA is opened,
the maximum amount of fuel is being supplied to the
fuel injection pump. Any fuel that does not enter the
injection pump is directed to the overflow valve. The
overflow valve regulates how much excess fuel is used
for lubrication of the pump and how much is returned
to the fuel tank through the drain manifold.
An audible click from the FCA is normal when
operating the key to either the ON or OFF positions.
REMOVAL
The Fuel Control Actuator (FCA) is located at the
rear of the high-pressure, fuel injection pump (Fig. 13).
(1) Clean FCA mounting area at rear of fuel injec-
tion pump with an evaporative-type cleaner.
(2) Disconnect electrical connector at FCA.
(3) Remove 2 FCA mounting bolts.
(4) Remove FCA from injection pump.
(5) After removal, inspect FCA for corrosion or
damage. Shake the FCA and listen for a rattle. If
FCA does not rattle, replace it.
Fig. 13 FUEL CONTROL ACTUATOR
1 - ACTUATOR MOUNTING BOLTS
2 - FCA (FUEL CONTROL ACTUATOR)
3 - ACTUATOR ELECTRICAL CONNECTOR
FUEL INJECTION - DIESEL
INSTALLATION
(1) Install new o-rings to the Fuel Control Actua-
tor (FCA).
(2) Lubricate o-rings with clean, light grease.
(3) Using new mounting bolts, install FCA into
injection pump. Tighten the micro-encapsulated bolts
in two stages. First to 3 N·m (27 in. lbs.), and then to
7 N·m (62 in. lbs.) torque. Do not pause more than
two minutes between tightening stages as bolts may
lose their ability to retain torque.
(4) Ensure FCA is mounted flush to injection
pump.
(5) Connect electrical connector to FCA.
(6) Start engine and observe for leaks.
FUEL INJECTOR
DESCRIPTION
Six individual, solenoid actuated high-pressure fuel
injectors are used (Fig. 14). The injectors are vertically
mounted into a bored hole in the top of the cylinder
head. This bored hole is located between the intake/
exhaust valves. High-pressure connectors (Fig. 15),
mounted into the side of the cylinder head, connect
each fuel injector to each high-pressure fuel line.
Fig. 14 FUEL INJECTOR - DIESEL
1 - SOLENOID ELECTRICAL CONNECTOR STUDS
2 - MOUNTING BOLTS
3 - MOUNTING PLATES
4- COPPER SEALING WASHER
5 - INJECTOR TIP
6 - INJECTOR O-RING
7 - INJECTOR ELECTRICAL SOLENOID
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