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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 380 (ENGINE CONTROLS - 6.6L (LB7) (INTRODUCTION))REPAIR INSTRUCTIONSFUEL RAIL ASSEMBLY REPLACEMENT - BANK 2REMOVAL PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Removal Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION 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 cables. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  2. Drain the cooling system. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) in Engine Cooling.
  3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  4. Reposition the positive crankcase ventilation (PCV) hose clamp.
  5. Remove the PCV hose.
    6. Fig 1: View Of Crankcase Ventilation Hoses At Valve Rocker Arm Covers
    GM687021Courtesy of GENERAL MOTORS CORP.
  6. Remove the fuel injection control module. Refer to Fuel Injection Control Module Replacement .
  7. Remove the fuel filter. Refer to Fuel Filter Replacement 
  8. Remove the exhaust gas recirculation (EGR) valve. Refer to Exhaust Gas Recirculation (EGR) Valve Replacement .
  9. Disconnect the fuel feed rear pipe from the junction block (1).
    10. Fig 2: Fuel Feed Rear Pipe At Junction Block
    GM660438Courtesy of GENERAL MOTORS CORP.
  10. Remove the fuel injector feed pipe retainer bolts and retainers.
  11. Remove the fuel injector pipes.
    12. Fig 3: Right Fuel Injector Feed Pipes
    GM660502Courtesy 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.