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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - INTRODUCTION (2 OF 2)REPAIR INSTRUCTIONSFUEL INJECTION FUEL RAIL ASSEMBLY REPLACEMENT - BANK 2REMOVAL PROCEDURE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Removal Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Removal Procedure
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Remove the air conditioning (A/C) compressor. Refer to Compressor Replacement (6.6L) .
  3. Remove the left fuel rail fuel feed pipe. Refer to Fuel Rail Fuel Feed Pipe Replacement - Left Side .
  4. Remove the right fuel rail fuel feed pipe. Refer to Fuel Rail Fuel Feed Pipe Replacement - Right Side .
  5. Remove the left fuel injector feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Left Side .
    6. Fig 1: Identifying Intake Air Temperature Sensor
    GM1732300Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the fuel rail temperature (FRT) sensor electrical connector.
  7. Remove the fuel return pipe. Refer to Fuel Return Pipe Replacement .
    8. Fig 2: Identifying LH Fuel Rail
    GM1732079Courtesy of GENERAL MOTORS CORP.
  8. Remove the 2 fuel rail bolts and the fuel rail assembly.
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.