Chrysler DODGE D150 1993 Service Manual page 822

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FUEL SYSTEM 14 • 3
FUEL DELIVERY S Y S T E M - E X C E P T DIESEL
INDEX
page
Fuel Filter—3.9L/5.2L G a s Engine . . . . . . . . . . . . 10
Fuel Filter—5.9L G a s Engine 11
Fuel Pressure Leak Down Test—3.9L/5.2L Engine . 8
Fuel Pressure Leak Down Test—5.9L Engine . . . . 9
Fuel Pump Capacity Test—All G a s Engines . . . . . 8
Fuel Pump Control . . . . . . . . . . . . . . . . . . . . . . . . 5
Fuel Pump Module—3.9L/5.2L Engines 3
GENERAL INFORMATION
Two different types of fuel delivery/fuel return sys­
tems are used. The system used with the 3.9L/5.2L
engine will route excess fuel pressure back to t h e
fuel tank through a fuel return line. The system used
with the 5.9L engine will not have a separate fuel re­
turn line. This system will be referred to as a re-
turnless type. The fuel pump module used with t h e
5.9L engine will contain a combination fuel pressure
regulator and fuel filter. Refer to t h e following Fuel
Pump Module for additional information or, refer to
the Multi-Port Fuel Injection sections of this Fuel
System group.
A separate frame mounted fuel filter will not be
used with any 5.9L gas powered engine.
FUEL PUMP M0DULE-3.9L/5.2L ENGINES
The fuel pump module on vehicles equipped with
3.9L/5.2L engines is installed in the top of t h e fuel
t a n k (Fig. 1). The fuel pump module contains t h e fol­
lowing components (Fig. 2):
• Fuel pump
• Fuel pump reservoir
• A separate in-tank fuel filter
• Pressure relief/rollover valve
PRESSURE RELIEF/ PUMP/GAUGE
Fig. 1 Top View of Fuel Pump Module—3.9U5.2L
Engine
page
Fuel Pump Module—5.9L Engine . . . . . . . . . . . . . 3
Fuel System Pressure Release . . . . . . . . . . . . . . . 5
Fuel System Pressure Test—3.9L/5.2L Engine . . . 5
Fuel System Pressure Test—5.9L Engine 7
Fuel Tubes/Lines/Hoses and Clamps . . . . . . . . . . 11
General Information 3
Quick-Connect Fittings 11
• Fuel pump gauge sending unit
• Fuel supply and return tube connections
J9114-147
Fig. 2 Fuel Pump Module Components—Typical
FUEL PUMP MODULE—5.9L ENGINE
The fuel pump module on vehicles equipped with a
5.9L gas powered engine is installed in t h e top of the
fuel t a n k (Fig. 3). The fuel pump module contains
the following components (Fig. 2):
• Fuel filter/fuel pressure regulator
• Fuel pump
• Fuel pump reservoir
• A separate in-tank fuel filter
• Pressure relief/rollover valve
• Fuel pump gauge sending unit
• Fuel supply tube connection