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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 483 (ENGINE CONTROLS - 6.0L - ALTERNATIVE FUELS (INTRODUCTION))REPAIR INSTRUCTIONSHIGH PRESSURE REGULATOR (HPR) REPLACEMENTDISASSEMBLY PROCEDURE
2006 Chevrolet Suburban K2500, 6.0 U

Disassembly Procedure

2006 Chevrolet Suburban K2500, 6.0 USECTION Disassembly 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.

Use the following procedure if any HPR fittings require replacement:

    Fig 1: Identifying High Pressure Regulator (HPR) Components
    GM296393Courtesy of GENERAL MOTORS CORP.
  1. Remove the coolant fittings (2, 5).
  2. Remove the pressure relief device (3).
  3. Remove the fuel outlet fitting (4).
    4. Fig 2: Identifying High Pressure Regulator (HPR) Inlet Fitting Components
    GM327075Courtesy of GENERAL MOTORS CORP.
  4. Remove the filter spring (4).
  5. Remove the filter (3).
  6. Remove the seal (2).
RENDER: 1.0x

NO RELATED

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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.