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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2072 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSFUEL INJECTOR REPLACEMENT (LEFT)REMOVAL 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
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Injector Electrical Connectors
    GM1335536Courtesy of GENERAL MOTORS CORP.
  1. Remove the left fuel injection fuel feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Left Side .
  2. Remove the left fuel injection fuel return pipe. Refer to Fuel Injection Fuel Return Pipe Replacement - Left Side .
    3. CAUTION: Label all the injector electrical connectors before the connectors are removed in order to prevent reconnecting to the wrong injector. Failure to properly connect the injectors in the correct sequence will cause severe engine damage.
  3. Disconnect the engine wiring harness electrical connectors from the fuel injectors.
    4. Fig 2: View Of Left Fuel Injector Bracket Bolts
    GM1335618Courtesy of GENERAL MOTORS CORP.
  4. Remove the fuel injector bracket bolts.
    5. Fig 3: View Of Special Tool J-46594 Installed In Bolt Hole In Fuel Injector Bracket
    GM1866973Courtesy of GENERAL MOTORS CORP.
  5. Install the J-46594  (1) into the bolt hole in the fuel injector bracket.
  6. Install a flare nut wrench onto the J-46594  and pull back away from the fuel injector, until the injector releases from its seat.
  7. Remove the J-46594  .
    8. Fig 4: View Of Left Fuel Injectors W/Brackets
    GM1335621Courtesy of GENERAL MOTORS CORP.
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.