2006 DODGE RAM SRT-10 fuel pump

3. To remove sending unit from pump module, lift on
plastic locking tab whilesliding sending unit tracks.
INSTALLATION
1. Connect necessary wiring into electrical connectors. Connect 4–wire electrical connector to pump module.
2. Position sending unit to pump module. Slide and snap into place.
3. Install fuel pump module. Refer to Fuel Pump Module Removal/Installation.

MODULE-FUEL PUMP
DESCRIPTION
The electric fuel pump is located inside of the fuel pump module. A 12 volt, permanent magnet, electric motor pow-
ers the fuel pump. The electric fuel pump is not a separate, serviceable component.
OPERATION
Voltage to operate the electric pump is supplied through the fuel pump relay.
Fuel is drawn in through a filter at the bottom of the module and pushed through the electric motor gearset to the
pump outlet.
Check Valve Operation:The bottom section of the fuel pump module contains a one-way check valve toprevent
fuel flow back into the tank and to maintain fuel supply line pressure (engine warm) when pump is not operational.
It is also used to keep the fuel supply line full of gasoline when pump is not operational. After the vehicle has cooled
down, fuel pressure may drop to 0 psi (cold fluid contracts), but liquid gasoline will remain in fuel supply line
between the check valve and fuel injectors.Fuel pressure that has dropped to 0 psi on a cooled down vehicle
(engine off) is a normal condition.
The electric fuel pump is not a separate, serviceable component.

MODULE - FUEL PUMP
DESCRIPTION
The fuel pump module assembly is located on the top of the fuel tank. The complete assembly contains the fol-
lowing components:
A combination fuel filter/fuel pressure regulator
A separate fuel pick-up, or inlet filter
An electric fuel pump
Alockringtoretainpumpmoduletotank
A soft gasket between tank flange and module
A fuel gauge sending unit (fuel level sensor)
Fuel line connection
The fuel gauge sending unit may be serviced separately. If the electrical fuel pump, primary inlet filter, fuel filter or
fuel pressure regulator require service, the fuel pump module must be replaced.
OPERATION
Refer to Fuel Pump, Inlet Filter, Fuel Filter / Fuel Pressure Regulator andFuel Gauge Sending Unit.
REMOVAL
WARNING: The fuel system may be under a constant pressure (even with the engine off). Before servicing
the fuel pump module, the fuel system pressure must be released.
1. Drain and remove fuel tank. Refer to Fuel Tank
Removal/Installation.
2. Note rotational position of module before attempt-
ing removal. An indexing arrow is located on top of
module for this purpose.
3. Position Special Tool 9340 (3) into notches on out-
side edge of lockring (5).
4. Install 1/2 inch drive breaker bar (1) to tool 9340
(3).
5. Rotate breaker bar counter-clockwise to remove
lockring (5).
6. Remove lockring. The module will spring up slightly
when lockring is removed.
7. Remove module from fuel tank. Be careful not to
bend float arm while removing.

INSTALLATION
1. Using a new seal (gasket), position fuel pump mod-
uleintoopeninginfueltank.
2. Position lockring (5) over top of fuel pump module.
3. Rotate module until embossed alignment arrow
points to center alignment mark. This step must be
performed to prevent float from contacting side of
fuel tank. Also be sure fuel fitting on top of pump
module is pointed to drivers side of vehicle.
4. Install Special Tool 9340 (3) to lockring.
5. Install 1/2 inch drive breaker (1) into Special Tool
9340 (3).
6. Tighten lockring (clockwise) until all seven notches
have engaged.
7. Install fuel tank. Refer to Fuel Tank
Removal/Installation.

RAIL - FUEL
DESCRIPTION
The fuel injector rail is used to mount the fuel injectors to the engine.
OPERATION
High pressure from the fuel pump is routed to the fuel rail. The fuel rail then supplies the necessary fuel to each
individual fuel injector.
A quick-connect fitting with a safety latch clip is used to attach the fuel linetothefuelrail.
The fuel rail is not repairable.
CAUTION: The left and right sections of the fuel rail are connected with either a flexible connecting hose, or
joints. Do not attempt to separate the rail halves at these connecting hoseor joints. Due to the design of
the connecting hose or joint, it does not use any clamps. Never attempt to install a clamping device of any
kind to the hose or joint. When removing the fuel rail assembly for any reason, be careful not to bend or
kink the connecting hose or joint.
REMOVAL
3.7L V-6
WARNING: The fuel system is under constant pressure even with engine off. Before servicing fuel rail, fuel
system pressure must be released.
CAUTION: The left and right fuel rails are replaced as an assembly. Do not attempt to separate rail halves
at connector tubes. Due to design of tubes, it does not use any clamps. Neverattempt to install a clamping
device of any kind to tubes. When removing fuel rail assembly for any reason, be careful not to bend or
kink tubes.
1. Remove fuel tank filler tube cap.
2. Perform Fuel System Pressure Release Procedure.
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY -
STANDARD PROCEDURE)
3. Remove negative battery cable at battery.
4. Remove air duct at throttle body air box.
5. Remove air box at throttle body.
6. Remove air resonator mounting bracket at front of
throttle body (2 bolts).
7. Disconnect fuel line latch clip and fuel line at fuel
rail. A special tool will be necessary for fuel line
disconnection. (Refer to 14 - FUEL SYSTEM/FUEL
DELIVERY/QUICK CONNECT FITTING - STAN-
DARD PROCEDURE)
8. Remove necessary vacuumlines at throttle body.
9. Disconnect electrical connectors at all 6 fuel injec-
tors. To remove connector refer to. Push red col-
ored slider away from injector (1). While pushing
slider, depress tab (2) and remove connector (3)
from injector. The factory fuel injection wiring har-
ness is numerically tagged (INJ 1, INJ 2, etc.) for
injector position identification. If harness is not
tagged, note wiring location before removal.
10. Disconnect electrical connectors at all throttle body sensors.

TA N K - F U E L
DESCRIPTION
The fuel tank is constructed of a plastic material. Its main functions are for fuel storage and for placement of the fuel
pump module, and (if equipped) certain ORVR components.
OPERATION
All models pass a full 360 degree rollover test without fuel leakage. To accomplish this, fuel and vapor flow controls
are required for all fuel tank connections.
Two check (control) valves are mounted into the top of the fuel tank. Refer to Fuel Tank Check Valve for additional
information.
An evaporation control system is connected to the fuel tank to reduce emissions of fuel vapors into the atmosphere.
When fuel evaporates from the fuel tank, vapors pass through vent hoses or tubes to a charcoal canister where
they are temporarily held. When the engine is running, the vapors are drawninto the intake manifold. Certain mod-
els are also equipped with a self-diagnosing system using a Leak DetectionPump (LDP) or NVLD Pump, and/or an
On-Board Refueling Vapor Recovery (ORVR) system. Refer to Emission Control System for additional information.
REMOVAL- EXCEPT DIESEL
1. Disconnect and separate fuel vent line (1) from fuel fill bezel (2).

2. Disconnect electrical connector at top of fuel pump module. To disconnect electrical connector: Push upward on
red colored tab to unlock. Push on black colored tab while removing connector.
3. Disconnect necessary emission vent lines from leak pump and EVAP canister (4) and/or (5).
4. Disconnect fuel supply line (2) from fuel pump module (1).
5. Disconnect necessary emission vent lines from check valves (3) and/or (7) at top of tank.

8. Remove two fuel tank strap nuts (5) and remove both tank support straps (4).
9. Continue to lower tank for removal.
10. If fuel tank is to be replaced, remove fuel pump module from tank. Refer to Fuel Pump Module Removal/In-
stallation procedures.
INSTALLATION - EXCEPT DIESEL
1. If fuel tank is to be replaced, install fuel pump mod-
ule into tank. Refer to Fuel Pump Module Removal/
Installation procedures.
2. Disconnect clamps and remove rubber fuel fill hose
and fuel vent hose at fuel fill tube. Install these two
hoses to two fuel tank fittings. Rotate hoses until
paint marks (2) on hoses line up with alignment
marks (1). Tighten both clamps.