GM Service Manual Online
For 1990-2009 cars only

Fuel Hose/Pipes Replacement - Chassis Filter to Tank Cutaway Van Rear Tank

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining .
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

  5. Object Number: 1204557  Size: SH
  6. Disconnect the fuel feed pipe at the fuel filter.
  7. Disconnect the chassis fuel return pipe at the rear fuel return pipe.
  8. Disconnect the chassis fuel feed and return pipes at the rear fuel feed and return pipes.
  9. Remove the fuel pipe retaining clips.
  10. Remove the fuel feed and return pipes.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  1. Install the fuel feed and return pipes and the fuel pipe retaining clips (2) to the frame rail (1).
  2. Tighten
    Tighten the bolts to 12 N·m (106 lb in).

  3. Connect the chassis fuel feed and return pipes to the rear fuel feed and return pipes (2).

  4. Object Number: 1204557  Size: SH
  5. Connect the chassis fuel return pipe to the rear fuel return pipe.
  6. Connect the fuel feed pipe to the fuel filter.
  7. Lower the vehicle.
  8. Refill the fuel tank.
  9. Tighten the fuel filler cap.
  10. Connect the negative battery cable.
  11. Inspect for leaks:
  12. 9.1. Turn ON the ignition for 2 seconds.
    9.2. Turn OFF the ignition for 10 seconds.
    9.3. Turn ON the ignition switch.
    9.4. Inspect for fuel leaks.
  13. Install the engine cover. Refer to Engine Cover Replacement .

Fuel Hose/Pipes Replacement - Chassis Engine to Fuel Filter

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Disconnect the fuel feed and return pipes (3) from the engine compartment fuel pipes (4).

  4. Object Number: 1204680  Size: SH
  5. Remove the fuel pipes from the bellhousing stud retainer clip.
  6. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Disconnect the fuel feed pipe at the fuel filter.
  8. Disconnect the chassis fuel return pipe at the rear fuel return pipe.
  9. Remove the fuel pipe retaining clips. Note the location of the retaining clips for installation.
  10. Remove the fuel feed and return pipes.

Installation Procedure

  1. Position the fuel feed and return pipes in the vehicle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the fuel pipe retaining clips (1).
  4. Tighten
    Tighten the clips to 12 N·m (106 lb in).

  5. Connect the chassis fuel return pipe (4) to the rear fuel return pipe.
  6. Connect the fuel feed pipe (5) to the fuel filter.
  7. Lower the vehicle.

  8. Object Number: 1204680  Size: SH
  9. Install the fuel feed and return pipes to the engine compartment fuel pipes.
  10. Tighten
    Tighten the fuel pipe fittings to 27 N·m (20 lb ft).

  11. Install the fuel pipes to the retainer clip.
  12. Tighten
    Tighten the fuel pipe retainer clip nut to 28 N·m (21 lb ft).

  13. Tighten the fuel filler cap.
  14. Connect the negative battery cable.
  15. Inspect for leaks:
  16. 10.1. Turn ON the ignition for 2 seconds.
    10.2. Turn OFF the ignition for 10 seconds.
    10.3. Turn ON the ignition.
    10.4. Inspect for fuel leaks.
  17. Install the engine cover. Refer to Engine Cover Replacement .

Fuel Hose/Pipes Replacement - Chassis Filter to Tank Cutaway Van Side Tank

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining .
  4. Remove the fuel tank. Refer to Fuel Tank Replacement .

  5. Object Number: 1204692  Size: SH
  6. Disconnect the fuel feed pipe at the fuel filter.
  7. Disconnect the chassis fuel return pipe at the rear fuel return pipe.
  8. Remove the fuel pipe retaining clips.
  9. Remove the fuel feed and return pipes.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  1. Install the fuel feed and return pipes and the fuel pipe retaining clips (1).
  2. Tighten
    Tighten the bolts to 12 N·m (106 lb in).

  3. Connect the chassis fuel return pipe to the rear fuel return pipe.

  4. Object Number: 1204692  Size: SH
  5. Connect the fuel feed pipe to the fuel filter.
  6. Install the fuel tank. Refer to Fuel Tank Replacement .
  7. Lower the vehicle.
  8. Refill the fuel tank.
  9. Tighten the fuel filler cap.
  10. Connect the negative battery cable.
  11. Inspect for leaks:
  12. 9.1. Turn ON the ignition for 2 seconds.
    9.2. Turn OFF the ignition for 10 seconds.
    9.3. Turn ON the ignition.
    9.4. Inspect for fuel leaks.
  13. Install the engine cover. Refer to Engine Cover Replacement .