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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 INJECTION PUMP 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 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 Hose Clamps
    GM1872010Courtesy of GENERAL MOTORS CORP.
  1. Remove the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (LMM) .
  2. Remove the center intake manifold. Refer to Center Intake Manifold Replacement .
  3. Reposition the fuel hose clamp (1) at the fuel return pipe.
  4. Reposition the fuel hose clamp (2) at the fuel injection fuel feed manifold.
    5. Fig 2: View Of Fuel Filter Hoses & Clamps
    GM1872011Courtesy of GENERAL MOTORS CORP.
  5. Reposition the fuel hose clamp (2) at the fuel injection pump.
  6. Reposition the fuel hose clamp (3) at the fuel injection pump.
  7. Remove the fuel hose (1) from the return pipe and injection pump.
  8. Remove the fuel hose (4) from the fuel injection fuel feed manifold and injection pump.
    9. Fig 3: View Of Left Fuel Rail Feed Pipe Fittings
    GM1387871Courtesy of GENERAL MOTORS CORP.
  9. Loosen the left fuel rail fuel feed pipe fittings (1).
    10. Fig 4: Left Fuel Rail Fuel Feed Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  10. Remove the left fuel rail fuel feed pipe.
    11. NOTE: Be careful not to damage any mating surfaces.
  11. Remove the fuel injection pump. Refer to Fuel Injection Pump Removal .
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.