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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 5 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL INJECTOR REPLACEMENT (RIGHT)REMOVAL PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Removal Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Fuel Injector Engine Wiring Harness Electrical Connector
    GM1732433Courtesy of GENERAL MOTORS CORP.
  1. Remove the upper right valve cover. Refer to Valve Rocker Arm Cover Replacement - Upper Right Side (LMM) .
    2. Fig 2: View Of Right Fuel Injector Bracket Bolts
    GM1335619Courtesy of GENERAL MOTORS CORP.
  2. Remove the fuel injector bracket bolts.
    3. Fig 3: View Of Right Fuel Injectors W/Brackets
    GM1335625Courtesy of GENERAL MOTORS CORP.
  3. Install J-46594  into the bolt hole in the fuel injector bracket. See Special Tools .
  4. Install a flare nut wrench onto J-46594  and pull back away from the fuel injector, until the injector releases from its seat. See Special Tools .
  5. Remove the J-46594  . See Special Tools .
  6. Remove the fuel injectors with brackets.
  7. Remove and discard the copper washer from the fuel injector bore.
  8. Remove and discard the fuel injector O-ring from the injector.
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.