SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 651 (ENGINE CONTROLS AND FUEL - 3.6L - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSFUEL INJECTOR REPLACEMENT (LLT)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 car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the high side fuel system pressure. Refer to Fuel Pressure Relief (High Pressure Pump - LLT) .
    2. NOTE: The fuel injectors have an alignment feature, note the position of the injectors alignment for installation.
  2. Remove the fuel injection fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LLT)  or Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LLT) .
    3. Fig 1: Fuel Injector Retaining Rings
    GM2004445Courtesy of GENERAL MOTORS CORP.
  3. Remove and discard the three fuel injector retaining rings (1).
    4. Fig 2: Direct Fuel Injector & Harness Assembly
    GM2004498Courtesy of GENERAL MOTORS CORP.
  4. Remove the direct fuel injectors and harness (1) as an assembly, and disconnect the electrical connector (2). If necessary, use the J 2619-01  with the J-37281-A  in order to remove the direct fuel injectors evenly. See Special Tools .
    5. Fig 3: Fuel Injector Components
    GM1977756Courtesy of GENERAL MOTORS CORP.
  5. Remove and discard the following components from the fuel injectors (4).
    • Upper O-ring Seal (1)
    • Plastic Spacer (2)
    • Retaining Ring (3)
    • Isolator Cup (5)
    • Teflon Seal (6)
  6. Inspect the fuel rail injector bores and clean with J 39313  , and EN-47909  , if required. See Special Tools .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.