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

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


Special Tools

EN-49248 Injector Rail Assembly Remover

For equivalent regional tools, refer to Special Tools .

Removal Procedure


1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .

2. Remove the fuel pipe shield. Refer to Fuel Pipe Shield Replacement .

3. Remove the intake manifold. Refer to Intake Manifold Replacement .

4. Remove the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LF1) .

5. Remove the foam insulator from the fuel rails.

6. Remove the right side fuel rail fasteners (1).


7. Remove the left side fuel rail fasteners (1) for clearance purposes.


8. Using the EN-49248-4 hook, raise the fuel rail (1) as an assembly.


9. Once the fuel rail is free, remove the EN-49248 remover.

10. Slide the fuel rail (1) toward the rear of the engine approximately 1 inch (25.4mm), in order to clear the center injector bore.


11.
Note

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


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


Installation Procedure


1. Slide the fuel rail (1) toward the front of the engine approximately 1 inch (25.4mm), in order to align the center injector bore.


2. Refer to Fastener Caution .

Hand tighten the two outer fuel rail fasteners to seat the injectors.


3. Start and hand tighten the remaining fuel rail fasteners.

4. Tighten the fuel rail fasteners in the sequence shown above:

4.1. Tighten the Bank 1 fuel rail bolts first pass to 12 Nm (106 lb in) .

4.2. Tighten the Bank 1 fuel rail bolts final pass to 23 Nm (17 lb ft) .

5. Install the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LF1) .

6. Inspect for fuel leaks using the following procedure:

6.1. Turn ON the ignition, with the engine OFF for 2 seconds.

6.2. Turn OFF the ignition, for 10 seconds.

6.3. Turn ON the ignition, with the engine OFF.

6.4. Inspect for fuel leaks.

7. Install the foam insulator to the fuel rails.

8. Install the intake manifold. Refer to Intake Manifold Replacement .

9. Install the fuel pipe shield. Refer to Fuel Pipe Shield Replacement .

10. Install the low side fuel pressure service port cap.

11. Install the fuel tank cap.