Dodge RAM TRUCK 1500 1995 Service Manual page 1101

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FUEL DELIVERY SYSTEM—DIESEL ENGINE 14 -19
length must be adjusted. For fuel shutdown solenoid
removal, installation and solenoid shaft adjustment
procedures, refer to the Diesel Engine—Component
Removal/Installation section of this group.
FUEL SHUTDOWN SOLENOID RELAY
Voltage to operate the fuel shutdown (shut-off) so­
lenoid is supplied from the ignition switch and
through the fuel shutdown solenoid relay. The fuel
shutdown solenoid relay is located in the engine com­
partment near the brake master cylinder (Fig. 14).
For diagnosis, refer to the Diesel Engine—General
Diagnosis section of this group.
For removal and installation procedures, refer to
the Diesel Engine—Component Removal/Installation
section of this group.
FUEL DRAIN MANIFOLD
Some fuel is continually vented from the fuel injec­
tion pump to cool the pump and the fuel injectors.
During injection, a small amount of fuel flows past
the injector nozzle and is not injected into the com­
bustion chamber. This fuel drains into the fuel drain
manifold (Fig. 15). Fuel in the drain manifold is then
routed back to the fuel filter/water separator.
For removal and installation procedures, refer to
the Diesel Engine—Component Removal/Installation
section of this group.
POWERTRAIN CONTROL MODULE
Refer to the Diesel Engine sections of this group for
information.
DIESEL FUEL SYSTEM OPERATION
Refer to this section (Fuel Delivery—Diesel Engine)
for components not operated by the powertrain con­
trol module (PCM). Refer to the Diesel Engine—Com­
ponent Description/System Operation section for
components operated by the PCM.
FUEL SHUT-OFF
FUEL HEATER SOLENOID RELAY
Fig. 14 Fuel Shutdown Solenoid Relay—Diesel
Fig. 15 Fuel Drain Manifold—Typical