GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Filler Tube Replacement

Removal Procedure

    Object Number: 853731 Size: SH
  1. Remove the fuel tank filler housing to body screws (1) and retainer (2).
  2. Partially drain the fuel tank. Refer to Fuel Tank Draining .

    3. Object Number: 300318 Size: SH
  3. Remove the fuel tank filler housing to fuel tank fill pipe screws.
  4. Remove the fuel tank filler housing.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    6. Object Number: 815635 Size: SH
  6. Remove the fuel tank ground strap (3).
  7. Remove the chassis harness ground strap (2) and fuel tank ground strap (4).

    8. Object Number: 816707 Size: SH
  8. Remove the rear axle vent hose from the clip on the fuel fill pipe bracket.

    9. Object Number: 816694 Size: SH
  9. Loosen the fuel tank fill pipe clamp.
  10. Remove the fuel fill pipe from the tank and vehicle.
  11. Cap the opening on the fuel tank in order to prevent possible fuel system contamination.

Installation Procedure

    Object Number: 816694 Size: SH
  1. Remove the cap from the opening on the fuel tank.
  2. Install the fuel fill pipe to the vehicle and tank.

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Tighten the fuel tank fill pipe clamp.

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


    Object Number: 816707 Size: SH
  4. Install the rear axle vent hose to the clip on the fuel fill pipe bracket.

    5. Object Number: 815635 Size: SH
  5. Install the chassis harness ground strap (2) and fuel tank ground strap (4).
  6. Install the fuel tank ground strap (3).

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

  7. Lower the vehicle.

    8. Object Number: 300318 Size: SH
  8. Install the fuel tank filler housing.
  9. Install the fuel tank filler housing to fuel tank fill pipe screws.

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

  10. Fill the fuel tank, if necessary.

    11. Object Number: 853731 Size: SH
  11. Install the fuel tank filler housing to body screws (1) and retainer (2).

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

  12. Inspect the system for leaks using the following procedure:
    13. 12.1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    12.2. Turn the ignition OFF for 10 seconds.
    12.3. Turn the ignition ON, with the engine OFF.
    12.4. Inspect for fuel leaks.