Fuel Injection Fuel Rail Assembly Replacement L26

Notice: 

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: 

1. Relieve the fuel pressure from the fuel system. Refer to Fuel Pressure Relief .
2. Clean the fuel rail assembly and the fuel feed pipe.
3. Disconnect the fuel feed pipe (1) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
4. Remove the spark plug wires from the fuel rail.
5. Disconnect and reposition the spark plug wires from the ignition control module.



6. Disconnect the fuel injector electrical connectors.



7. Remove the fuel rail hold-down nuts (2).
8. Remove the fuel rail (1) with the fuel injectors (3) with equal force on both sides of the fuel rail.

Caution: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always install the fuel injector O-rings in the proper position. If the upper and lower O-rings are different colors (black and brown), be sure to install the black O-ring in the upper position and the brown O-ring in the lower position on the fuel injector. The O-rings are the same size but are made of different materials.

Notice: 

1. The O-rings must be replaced on all components that are serviced.
2. Lightly oil the fuel injector O-rings with clean engine oil.
3. Place the fuel rail (1) with the fuel injectors (3) on the intake manifold.
4. Seat the fuel injectors (3) by HAND.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Install the fuel rail hold-down nuts (2).

Tighten
Tighten the nuts to 10 N·m (89 lb in).




6. Connect the fuel injector electrical connectors.
7. Reposition the spark plug wires to the fuel rail.
8. Connect the spark plug wires to the ignition control module.



9. Connect the fuel feed pipe (1) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
10. Tighten the fuel fill cap.
11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
12. Inspect for leaks.

12.1.

Turn ON the ignition for 2 seconds.

12.2.

Turn OFF the ignition for 10 seconds.

12.3.

Turn ON the ignition.

12.4.

Inspect for fuel leaks.

13. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement for the 3.8L engine.

Fuel Injection Fuel Rail Assembly Replacement L32

Notice: 

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: 

1. Relieve the fuel pressure from the fuel system. Refer to Fuel Pressure Relief .
2. Clean the fuel rail assembly and the fuel feed pipe.
3. Disconnect the fuel feed pipe from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
4. Remove the generator brace. Refer to Generator Brace Replacement .
5. Disconnect the fuel injector electrical connectors.



6. Remove the fuel injector electrical harness clips holding harness to front and the rear of the fuel rail.



7. Unclip and remove the spark plug wires from the fuel rail retaining clips.
8. Disconnect and reposition the spark plug wires from the ignition control module.
9. Remove the fuel rail hold-down nuts (2).
10. Remove the fuel rail (1) with the fuel injectors (3) with equal force on both sides of the fuel rail.

Caution: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always install the fuel injector O-rings in the proper position. If the upper and lower O-rings are different colors (black and brown), be sure to install the black O-ring in the upper position and the brown O-ring in the lower position on the fuel injector. The O-rings are the same size but are made of different materials.

1. The O-rings must be replaced on all components that are serviced.
2. Lightly oil the fuel injector O-rings with clean engine oil.
3. Place the fuel rail (1) with the fuel injectors (3) on the intake manifold.
4. Seat the fuel injectors (3) by HAND.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Install the fuel rail hold-down nuts (2).

Tighten
Tighten the nuts to 10 N·m (89 lb in).

6. Reposition and connect the spark plug wires to the ignition control module.
7. Install the spark plug wires to the fuel rail retaining clips.



8. Install the fuel injector electrical harness clips holding harness to the front and the rear of fuel rail.



9. Connect the fuel injector electrical connectors.
10. Install the generator brace. Refer to Generator Brace Replacement .
11. Connect the fuel feed pipe to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
13. Inspect for leaks.

13.1.

Turn ON the ignition for 2 seconds.

13.2.

Turn OFF the ignition for 10 seconds.

13.3.

Turn ON the ignition.

13.4.

Inspect for fuel leaks.

14. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement for the 3.8L engine.