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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 483 (ENGINE CONTROLS - 6.0L - ALTERNATIVE FUELS (INTRODUCTION))REPAIR INSTRUCTIONSLOW PRESSURE LOCK-OFF (LPL) SOLENOID 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 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
    2. CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical in the C/K Pickup service manual.
    3. Fig 1: Identifying Low Pressure Lock-Off (LPL) Solenoid Components
    GM756969Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the low pressure lock-off (LPL) solenoid electrical connector (5).
  4. Disconnect the fuel inlet line (1) from the LPL fitting (2).
    5. Fig 2: Identifying IPR Fuel Outlet Lines Components
    GM757010Courtesy of GENERAL MOTORS CORP.
  5. Remove the intermediate pressure regulator (IPR) fuel outlet line hold-down nut (6).
  6. Remove the fuel outlet line hold down (4).
  7. Disconnect the IPR fuel outlet lines (5, 8) from the IPR (2).
    8. Fig 3: Identifying IPR/LPL Bracket Components
    GM756975Courtesy of GENERAL MOTORS CORP.
  8. Remove the IPR/LPL bracket nuts (3).
  9. Remove the IPR/LPL assembly from the vehicle.
    10. Fig 4: Identifying IPR/LPL Assembly Components
    GM762368Courtesy of GENERAL MOTORS CORP.
  10. Remove the bolts (3) that retain the IPR/LPL assembly (1, 4) to the bracket (2).
    11. Fig 5: Identifying Line Union, IPR and LPL
    GM762374Courtesy of GENERAL MOTORS CORP.
  11. While holding the line union (2) rotate and remove the IPR (3) or the LPL (1) as required.
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.