Removal Procedure
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
- Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
- Remove the intake manifold. Refer to Intake Manifold Replacement (LF4) .
- Remove and DISCARD the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LF4) .
- Remove the fuel injection fuel rail noise shield (1) from the engine (2).
- Remove the bank 2 fuel rail fasteners (1).
- Disconnect the fuel rail electrical connectors (1) and remove their retainers from the fuel feed pipe bracket (2).
- Remove the bank 1 fuel rail fasteners (1) for clearance purposes.
- Using the EN-49248-4 hook (1), raise the fuel rail (2) as an assembly.
- Once the fuel rail is free, remove the EN-49248 remover (1).
- Individually slide each fuel rail (1), toward the rear of the engine approximately 1 inch (25.4 mm), in order to clear the center injector bore.
- Once the fuel rails are removed, remove the fuel injectors and rebuild them. Refer to Fuel Rail and Injectors Cleaning and Inspection .
NOTE:
The direct fuel injectors must be rebuilt whenever the injector has been released from the fuel rail or cylinder head.