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Home › GMC › 2001 › C3500 HD 8.1 G, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - 8.1L - Repair Instructions › Repair Instructions › Filler Tube Replacement (Cab/Chassis) › Installation Procedure

Installation Procedure

    Fig 1: Fuel Fill And Vent Pipe
    GM667876Courtesy of GENERAL MOTORS COMPANY
  1. Uncap the fuel tank.
  2. Install the fuel fill and vent pipe and hose assembly to the fuel tank.
  3. Refer to FASTENER NOTICE in Cautions and Notices.

    Align the fuel fill pipe to the fuel fill pipe housing.

    Tighten 

    • Tighten the fuel fill hose clamp (3) to 2.5 N.m (22 lb in)
    • Tighten the vent hose clamp (5) to 2.5 N.m (22 lb in)
  4. Lower the vehicle.
    5. Fig 2: Identifying Fuel Filler Components
    GM300318Courtesy of GENERAL MOTORS COMPANY
  5. Install the fuel fill pipe housing to the fuel fill pipe bolts.

    Tighten 

    Tighten the fuel fill pipe housing to fuel fill pipe bolts to 2.3 N.m (20 lb in)

  6. Refill the fuel system.
  7. Install the fuel filler cap.
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