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Home >> GMC >> 2002 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 8.1L >> Repair Instructions >> Filler Tube Replacement >> Installation Procedure
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Installation Procedure

  1. Uncap the fuel tank.
  2. Install the fuel fill (2) and vent pipe and hose (1) assembly to the fuel tank.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Align the fuel fill pipe to the fuel fill pipe housing.

    Tighten 

    • Tighten the fuel fill hose clamp to 2.5 N.m (22 lb in).
    • Tighten the vent hose clamp to 2.5 N.m (22 lb in).
  4. Lower the vehicle.
  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. Install the fuel fill pipe ground strap screw.

    Tighten 

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

  7. Refill the fuel system.
  8. Install the fuel filler cap.
  9. Connect the negative battery cable.
    Fig 1: Fuel Fill Pipe & Vent Pipe
    G01598945Courtesy of GENERAL MOTORS CORP.