Fuel Injection Fuel Rail Assembly Replacement - Bank 2

Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LF1)

Special Tools

EN-49248 - Injector Rail Assembly Remover

Removal Procedure

1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (Service and Repair).
2. Remove the fuel pipe shield. Refer to Fuel Pipe Shield Replacement (LLT) (Fuel Pipe Shield Replacement)Fuel Pipe Shield Replacement (LF1) (Fuel Pipe Shield Replacement).
3. Remove the intake manifold. Refer to Intake Manifold Replacement (LLT) (Intake Manifold Replacement)Intake Manifold Replacement (LF1) (Intake Manifold Replacement).
4. Remove the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LLT) (Fuel Feed Intermediate Pipe Replacement)Fuel Feed Intermediate Pipe Replacement (LF1) (Fuel Feed Intermediate Pipe Replacement).
5. Remove the cylinder head. Refer to Cylinder Head Replacement - Left Side (LF1) (Cylinder Head Replacement - Left Side)Cylinder Head Replacement - Left Side (LLT) (Cylinder Head Replacement - Left Side).




6. Remove the fuel rail bolts (1).




7. Remove the fuel rail and injectors (1) as an assembly using the EN-49248 - remover.
8. Remove and discard the direct fuel injector hold down clamps.

Note: The direct fuel injectors must be rebuilt whenever the injector has been released from the fuel rail or cylinder head.

9. Once the fuel rail is removed, remove the fuel injectors and rebuild them. Refer to Fuel Rail and Injectors Cleaning and Inspection (LLT) (61. Fuel Rail and Injectors Cleaning and Inspection)Fuel Rail and Injectors Cleaning and Inspection (LF1 or LFW) (61. Fuel Rail and Injectors Cleaning and Inspection).

Installation Procedure




1. Install the fuel rail with injectors (2) into the cylinder head evenly.
2. Hand tighten the two outer fuel rail bolts to seat the injector in the injector bores.
3. Start and hand tighten the remaining fuel rail bolts (1).





Caution: Refer to Fastener Caution (Fastener Caution).

4. Tighten the fuel rail bolts in the sequence shown:

1. Tighten the Bank 1 fuel rail bolts first pass to 12 Nm (106 lb in).
2. Tighten the Bank 1 fuel rail bolts a final pass to 23 Nm (17 lb ft).

5. Install the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LLT) (Fuel Feed Intermediate Pipe Replacement)Fuel Feed Intermediate Pipe Replacement (LF1) (Fuel Feed Intermediate Pipe Replacement).
6. Connect the fuel injector wiring harness electrical connector from the fuel injectors, fuel rail and fuel pressure sensor.
7. Inspect for fuel leaks using the following procedure:

1. Turn ON the ignition, with the engine OFF for 2 seconds.
2. Turn OFF the ignition, for 10 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Inspect for fuel leaks.

Note: Before installing the foam insulator, remove any remaining fuel from the injector well.

8. Install the foam insulator to the fuel rails.
9. Install the intake manifold. Refer to Intake Manifold Replacement (LLT) (Intake Manifold Replacement)Intake Manifold Replacement (LF1) (Intake Manifold Replacement).
10. Install the fuel pipe shield. Refer to Fuel Pipe Shield Replacement (LLT) (Fuel Pipe Shield Replacement)Fuel Pipe Shield Replacement (LF1) (Fuel Pipe Shield Replacement).
11. Install the cylinder head. Refer to Cylinder Head Replacement - Left Side (LF1) (Cylinder Head Replacement - Left Side)Cylinder Head Replacement - Left Side (LLT) (Cylinder Head Replacement - Left Side).
12. Install the low side fuel pressure service port cap.
13. Install the fuel tank cap.