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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 REPLACEMENTINSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Installation Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Installation 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.
  1. Install the fuel injection pump. Refer to Fuel Injection Pump Installation .
    2. Fig 1: Left Fuel Rail Fuel Feed Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  2. Position the left fuel rail fuel feed pipe.
    3. Fig 2: View Of Left Fuel Rail Feed Pipe Fittings
    GM1387871Courtesy of GENERAL MOTORS CORP.
  3. Tighten the left fuel rail fuel feed pipe fittings (1).

    Tighten:  Tighten fittings to 41 N.m (30 lb ft).

    4. Fig 3: View Of Fuel Filter Hoses & Clamps
    GM1872011Courtesy of GENERAL MOTORS CORP.
  4. Install the fuel hose (4) to the fuel injection fuel feed manifold and injection pump.
  5. Install the fuel hose (1) from the return pipe and injection pump.
  6. Position the fuel hose clamp (3) at the fuel injection pump.
  7. Position the fuel hose clamp (2) at the fuel injection pump.
    8. Fig 4: View Of Fuel Hose Clamps
    GM1872010Courtesy of GENERAL MOTORS CORP.
  8. Position the fuel hose clamp (2) at the fuel injection fuel feed manifold.
  9. Position the fuel hose clamp (1) at the fuel return pipe.
  10. Install the center intake manifold. Refer to Center Intake Manifold Replacement .
  11. Install the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (LMM) .
  12. Prime the fuel system. Refer to Fuel System Priming .
  13. Start the engine. If the engine stalls, repeat the above step.
  14. Once the engine starts, inspect for fuel leaks.
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.