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HOMESERVICE MANUALSCHEVROLET2013IMPALA LTZREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROLS/FUEL - 3.6L (LFX) - REPAIR INSTRUCTIONSREPAIR INSTRUCTIONSFUEL INJECTION FUEL RAIL ASSEMBLY REPLACEMENT - BANK 2REMOVAL PROCEDURE
2013 Chevrolet Impala LTZ

Removal Procedure

2013 Chevrolet Impala LTZSECTION Removal Procedure
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (Without CH 48027) , Fuel Pressure Relief (CH 48027) , Fuel Pressure Relief (High Side) .
  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 .
  5. Remove the foam insulator from the fuel rails.
    6. Fig 1: Right Side Fuel Rail Fasteners
    GM2497674Courtesy of GENERAL MOTORS COMPANY
  6. Remove the bank 1 fuel rail fasteners (1).
    7. Fig 2: Left Side Fuel Rail Fasteners
    GM2497627Courtesy of GENERAL MOTORS COMPANY
  7. Remove the bank 2 fuel rail fasteners (1) for clearance purposes.
    8. Fig 3: Raising The Fuel Rail With Special Tool
    GM2497628Courtesy of GENERAL MOTORS COMPANY
  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. Fig 4: Sliding The Fuel Rail Toward The Rear Of Engine
    GM2497934Courtesy of GENERAL MOTORS COMPANY
  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.

  11. 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) .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.