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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 442 (ENGINE CONTROLS AND FUEL - 3.6L - INTRODUCTION)REPAIR INSTRUCTIONSFUEL FEED PIPE REPLACEMENT (LLT)INSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure that the fuel feed pipe and fuel pump fittings are clean and dry prior to assembly.
    2. Fig 1: Identifying Fuel Feed Pipe Components
    GM1977758Courtesy of GENERAL MOTORS CORP.
  2. Position the fuel feed pipe (2) to the cylinder head and high pressure fuel pump.
  3. Install the fuel feed pipe fitting to the high pressure fuel pump hand tight.
    4. CAUTION: Refer to Fastener Caution .
  4. Install the fuel feed pipe bolts (4).

    Tighten: 

    • Tighten the bolts to 50 N.m (37 lb ft).
    • Tighten the fitting to 28 N.m (20 lb ft).

  5. Connect the fuel feed line quick connect fitting to the fuel feed pipe (2). Refer to Fuel Pipe Shield Replacement (LLT) .
    6. NOTE: If a fuel leak accrues at the high pressure fuel pump, the pump will need to be replaced.
  6. Inspect for leaks using the following procedure:
    1. Turn ON the ignition, with the engine OFF for 2 seconds.
    2. Turn OFF the ignition, for 10 seconds.
    3. Turn ON the ignition, with the engine OFF.
    4. Inspect for fuel leaks.
  7. Install the low side fuel pressure service port cap.
  8. Install the fuel tank cap.
  9. Install the radiator surge tank outlet pipe.
  10. Install the high pressure pump shield. Refer to Fuel Pipe Shield Replacement (LLT) .
  11. Install the fuel injection sight shield. Refer to Fuel Injector Sight Shield Replacement (LLT) .
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.