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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 380 (ENGINE CONTROLS - 6.6L (LB7) (INTRODUCTION))REPAIR INSTRUCTIONSFUEL FILLER HOSE REPLACEMENT (PICKUP)INSTALLATION PROCEDURE
2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the cap from the opening on the fuel tank.
  2. Install the fuel fill pipe to the vehicle and tank.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    3. Fig 1: Fuel Fill Pipe & Tank
    GM816694Courtesy of GENERAL MOTORS CORP.
  3. Tighten the fuel tank fill pipe clamp.

    Tighten:  Tighten the clamp to 2.5 N.m (22 lb in).

  4. Install the rear axle vent hose to the clip on the fuel fill pipe bracket.
    5. Fig 2: Rear Axle Vent Hose
    GM816707Courtesy of GENERAL MOTORS CORP.
  5. Install the chassis harness ground strap and fuel tank ground strap.
  6. Install the fuel tank ground strap bolt.

    Tighten:  Tighten the bolt to 9 N.m (80 lb in).

    7. Fig 3: Fuel Tank Ground Strap & Bolt
    GM420291Courtesy of GENERAL MOTORS CORP.
  7. Lower the vehicle.
  8. Install the fuel tank filler housing.
  9. Install the fuel tank filler housing to fuel tank fill pipe screws.

    Tighten:  Tighten the screws to 2.3 N.m (20 lb in).

    10. Fig 4: Identifying Fuel Filler Components
    GM300318Courtesy of GENERAL MOTORS CORP.
  10. Install the fuel tank filler housing to body screws (1) and retainer (2).

    Tighten:  Tighten the screws to 2.3 N.m (20 lb in).

    11. Fig 5: View Of Fuel Tank Filler Housing To Body Screws & Retainer
    GM853731Courtesy of GENERAL MOTORS CORP.
  11. Fill the fuel tank, if necessary.
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.