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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 380 (ENGINE CONTROLS - 6.6L (LB7) (INTRODUCTION))REPAIR INSTRUCTIONSFUEL FEED PIPE REPLACEMENTREMOVAL 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 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Loosen the charged air cooler outlet duct clamp (1).
    IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
    4. Fig 1: View Of Charged Air Cooler Outlet Duct & Clamps
    GM877275Courtesy of GENERAL MOTORS CORP.
  4. Remove the charged air cooler outlet duct.
  5. Loosen the charged air cooler inlet duct to turbocharger clamp (1).
    IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
    6. Fig 2: View Of Charged Air Cooler Inlet Duct & Clamps
    GM877281Courtesy of GENERAL MOTORS CORP.
  6. Remove the charged air cooler inlet duct from the turbocharger.
  7. Remove the engine wiring harness. Refer to Engine Wiring Harness Assembly Replacement .
  8. Remove the water outlet tube. Refer to Water Outlet Tube Replacement (6.6L (LB7) Engine) or Water Outlet Tube Replacement (6.6L (LLY) Engine) in Engine Cooling.
  9. Disconnect the fuel feed and return pipes from the chassis pipes. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
  10. Remove the air conditioning (A/C) compressor/power steering pump bracket. Refer to Air Conditioning (A/C) Compressor and Power Steering Pump Mounting Bracket Replacement in Engine Mechanical - 6.6L.
  11. Remove the heater pipe bolt and pipe.
    12. Fig 3: Heater Pipe & Bolt
    GM660425Courtesy of GENERAL MOTORS CORP.
  12. Remove the fuel pipe clip bolt and clip.
    13. Fig 4: View Of Fuel Inlet To Fuel Return Line Clamp
    GM755230Courtesy of GENERAL MOTORS CORP.
  13. Remove the fuel pipe clip bolts and clips on the intake.
    14. Fig 5: Fuel Pipe Clip Bolts And Clips On Intake
    GM755240Courtesy of GENERAL MOTORS CORP.
  14. Remove the fuel feed front pipe bracket nuts.
    15. Fig 6: Fuel Feed Front Pipe Bracket & Nuts
    GM755237Courtesy of GENERAL MOTORS CORP.
  15. Remove the fuel feed front hose from the fuel feed front pipe.
  16. Remove the fuel feed front pipe (1).
    17. Fig 7: Fuel Feed Front Hose To Fuel Feed Front
    GM791983Courtesy 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.