Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1777
5.7L
1. Clean out machined hole in engine block.
2. Apply a small amount of engine oil to sensor
o-ring.
3. Install sensor (4) into engine block with a slight
rocking and twisting action.
CAUTION: Before tightening sensor mounting bolt
(3) , be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.
4. Install mounting bolt (3) and tighten to 12 N·m (106
in. lbs.) torque.
5. Connect electrical connector (2) to sensor.
6. Lower vehicle.
6.1L
1. Clean out machined hole in engine block.
2. Apply a small amount of engine oil to sensor
o-ring.
3. Install sensor (4) into engine block with a slight
rocking and twisting action.
CAUTION: Before tightening sensor mounting bolt
(3) , be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.
4. Install mounting bolt (3) and tighten to 12 N·m (106
in. lbs.) torque.
5. Connect electrical connector (2) to sensor.
6. IF STARTER IS MOUNTED TO RIGHT SIDE OF
ENGINE: Install starter motor.
7. Lower vehicle.
8. IF STARTER IS MOUNTED TO RIGHT SIDE OF
ENGINE: Install negative battery cable.
14 - 182
FUEL INJECTION
LX
INJECTOR-FUEL
REMOVAL
2.7L
WARNING: THE FUEL SYSTEM IS UNDER CONSTANT PRESSURE EVEN WITH ENGINE OFF. BEFORE SER-
VICING FUEL INJECTOR(S), FUEL SYSTEM PRESSURE MUST BE RELEASED.
To remove one or more fuel injectors, the fuel rail assembly must be removed from engine.
1. Release fuel system pressure. Refer to Fuel System Pressure Release Procedure in this section.
2. Disconnect negative cable to battery.
3. Remove intake manifold plenum, (Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
4. Lift Plenum up off of engine. Cover intake manifold to prevent foreign material from entering engine.
5. Disconnect fuel supply tube quick connect fittings at the rear of intake manifold, (Refer to 14 - FUEL SYSTEM/
FUEL DELIVERY/QUICK CONNECT FITTING - STANDARD PROCEDURE).
6. If the injector connectors are not tagged with their
cylinder number, tag them to identify the correct
cylinder
7. Remove electrical connectors from the fuel injec-
tors.
8. Remove fuel rail (1) mounting bolts.
9. Lift fuel rail straight up off of the cylinder head.
10. Remove retaining clips from fuel injectors (2) at fuel rail.
11. Remove fuel injectors (2).
12. Repeat for remaining injectors.
13. Check injector O-ring for damage. If O-ring is damaged, it must be replaced. Replace the injector clip if it is
damaged.
3.5L
WARNING: THE FUEL SYSTEM IS UNDER CONSTANT PRESSURE EVEN WITH ENGINE OFF. BEFORE SER-
VICING FUEL INJECTOR(S), FUEL SYSTEM PRESSURE MUST BE RELEASED.
To remove one or more fuel injectors, the fuel rail assembly must be removed from engine.
1. Release fuel system pressure. Refer to Fuel System Pressure Release Procedure in this section.
2. Disconnect negative cable to battery.
3. Remove intake manifold plenum, (Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
4. Cover intake manifold to prevent foreign material from entering engine.
5. Disconnect fuel supply tube quick connect fittings at the rear of intake manifold, (Refer to 14 - FUEL SYSTEM/
FUEL DELIVERY/QUICK CONNECT FITTING - STANDARD PROCEDURE).
LX
FUEL INJECTION
14 - 183
6. If the injector connectors are not tagged with their
cylinder number, tag them to identify the correct
cylinder
7. Remove electrical connectors from the fuel injec-
tors.
8. Remove fuel rail mounting bolts.
9. Lift fuel rail straight up off of the cylinder head.
10. Remove retaining clips from fuel injectors at fuel
rail.
11. Remove fuel injectors.
12. Repeat for remaining injectors.
13. Check injector O-ring for damage. If O-ring is
damaged, it must be replaced. Replace the injec-
tor clip if it is damaged.
5.7L/6.1L
WARNING: THE FUEL SYSTEM IS UNDER CON-
STANT PRESSURE EVEN WITH ENGINE OFF.
BEFORE SERVICING FUEL INJECTOR(S), FUEL
SYSTEM PRESSURE MUST BE RELEASED.
To remove one or more fuel injectors, the fuel rail
assembly must be removed from engine.
1. Perform Fuel System Pressure Release Procedure.
2. Remove fuel injector rail (Refer to 14 - FUEL SYS-
TEM/FUEL DELIVERY/FUEL RAIL - REMOVAL) .
3. Remove clip(s) (3) retaining injector(s) (4) to fuel
rail.
4. Remove injector(s) from fuel rail.
14 - 184
FUEL INJECTION
LX
INSTALLATION
2.7L
1. Lightly lubricate the fuel injector O-rings with a cou-
ple drops of clean engine oil.
2. Install retaining clips on fuel injectors.
3. Push injectors into fuel injector rail until clips are in
the correct position.
4. Position fuel rail over cylinder head, and push rail
into place. Tighten fuel rail mounting bolts to 11
N·m (100 in. lbs.) torque.
5. Connect fuel supply tube quick connect fittings at
the rear of intake manifold, (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/QUICK CONNECT FIT-
TING - STANDARD PROCEDURE).
6. Connect electrical connectors to fuel injectors.
7. Install intake manifold plenum, (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
MANIFOLD
-
INSTALLATION).
8. Connect negative cable to battery.
9. Use the scan tool to pressurize the fuel system.
Check for leaks.
3.5L
1. Lightly lubricate the fuel injector O-rings with a cou-
ple drops of clean engine oil.
2. Install retaining clips on fuel injectors.
3. Push injectors into fuel injector rail until clips are in
the correct position.
4. Position fuel rail over cylinder head, and push rail
into place. Tighten fuel rail mounting bolts to 11
N·m (100 in. lbs.) torque.
5. Connect fuel supply tube quick connect fittings at
the rear of intake manifold, (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/QUICK CONNECT FIT-
TING - STANDARD PROCEDURE).
6. Connect electrical connectors to fuel injectors.
7. Install intake manifold plenum, (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
MANIFOLD
-
INSTALLATION).
8. Connect negative cable to battery.
9. Use the scan tool to pressurize the fuel system.
Check for leaks.
LX
FUEL INJECTION
14 - 185
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