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HOMESERVICE MANUALSGMC2016ACADIA SLT, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROLS AND FUEL - 3.6L (LLT) - REPAIR INSTRUCTIONSREPAIR INSTRUCTIONSFUEL INJECTION FUEL RAIL ASSEMBLY REPLACEMENT - BANK 1 (LLT)REMOVAL PROCEDURE
2016 GMC Acadia SLT, FWD

Removal Procedure

2016 GMC Acadia SLT, FWDSECTION Removal Procedure
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief 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 high pressure fuel pipe. Discard the pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LLT) .
  5. Remove the fuel rail crossover pipe. Refer to Fuel Injection Fuel Rail Crossover Tube Replacement (LLT) . Discard the pipe.
  6. Remove the bank 2 fuel injection rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LLT) .
  7. Remove the fuel injection fuel rail noise shield from the fuel rails.
    8. Fig 1: Removing/Installing Fuel Rail Bolts
    GM1977746Courtesy of GENERAL MOTORS COMPANY
  8. Disconnect the fuel pressure sensor electrical connector and cut the wire harness tie straps.
  9. Remove the fuel rail bolts (2) from both rails, for clearance purposes.
    10. Fig 2: Identifying Fuel Pressure Sensor & Fuel Injection Fuel Rail
    GM1977753Courtesy of GENERAL MOTORS COMPANY
  10. Remove the fuel pressure sensor (1). Refer to Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail .
  11. Remove the fuel rail from the cylinder head.
  12. Remove and discard the direct fuel injector hold down clamps.
    13. NOTE:

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

  13. Once the fuel rail is removed, remove the fuel injectors and rebuild them. Refer to Fuel Injector Replacement (LLT) .
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.