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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 382 (ENGINE CONTROLS - 4.3L (INTRODUCTION))REPAIR INSTRUCTIONSFUEL METER BODY ASSEMBLY 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 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The number 3 fuel tube must be positioned behind the number 1 fuel tube to eliminate interference with the upper intake manifold when installed.
  1. Position the fuel tubes of the MFI fuel meter body in the forward position.
  2. Install the MFI fuel meter body into the fuel meter body bracket on the lower intake manifold.

    Push down firmly to lock the fuel meter body into the fuel meter body bracket.

    3. Fig 1: View Of MFI Fuel Meter Body
    GM802242Courtesy of GENERAL MOTORS CORP.
  3. Insert the injectors in the following sequence into the correct injector bore in the lower manifold.
    1. Number 3
    2. Number 5
    3. Number 1
    4. Number 2
    5. Number 4
    6. Number 6
  4. Insure the electrical connectors on the injectors are positioned so that they do not interfere with each other and are pointing towards the center of the intake manifold.

    Rotate the electrical connectors inboard if necessary.

    5. IMPORTANT: Lack of lubrication will make installation of the upper intake manifold difficult and may cause damage to the O-ring.
  5. Lubricate the upper intake manifold O-ring on the fuel meter body with clean engine oil.
  6. Install the upper intake manifold. Refer to Intake Manifold Replacement - Upper in Engine Mechanical-4.3L.
  7. Tighten the fuel fill cap.
  8. Connect 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.
  9. Test for fuel leaks using the following procedure:
    1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    2. Turn the ignition OFF for 10 seconds.
    3. Turn the ignition ON, with the engine OFF.
    4. 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.