GM Service Manual Online
For 1990-2009 cars only

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

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.

  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

    Caution: Refer to Fastener Caution in the Preface section.

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

  3. Object Number: 1204557  Size: SH
  4. Connect the chassis fuel return pipe to the rear fuel return pipe.
  5. Connect the fuel feed pipe to the fuel filter.
  6. Lower the vehicle.
  7. Refill the fuel tank.
  8. Tighten the fuel filler cap.
  9. Connect the negative battery cable.
  10. Inspect for leaks:
  11. 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.
  12. Install the engine cover. Refer to Engine Cover Replacement.

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

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.

  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

    Caution: Refer to Fastener Caution in the Preface section.

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

  3. Object Number: 1204692  Size: SH
  4. Connect the fuel feed pipe to the fuel filter.
  5. Install the fuel tank. Refer to Fuel Tank Replacement.
  6. Lower the vehicle.
  7. Refill the fuel tank.
  8. Tighten the fuel filler cap.
  9. Connect the negative battery cable.
  10. Inspect for leaks:
  11. 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.
  12. Install the engine cover. Refer to Engine Cover Replacement.

Fuel Hose/Pipes Replacement - Chassis Cargo/Passenger Van

Removal Procedure


    Object Number: 1932955  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.
  3. Disconnect the fuel feed and evaporative emission (EVAP) pipes from the engine compartment fuel pipes.
  4. Disconnect the chassis wiring harness electrical connector (1) from the fuel pressure sensor (2).
  5. Remove the chassis wiring harness clip (3) from the fuel pipe.

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

Installation Procedure


    Object Number: 1204680  Size: SH
  1. Position the fuel feed and EVAP pipes in the vehicle.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the fuel pipe retaining clips and tighten the clips to 12 N·m (106 lb in).
  4. Connect the chassis EVAP pipe to the fuel tank EVAP pipe.
  5. Connect the fuel feed pipe to the fuel tank pipe.

  6. Object Number: 1932955  Size: SH
  7. Connect the chassis wiring harness electrical connector (1) to the fuel pressure sensor (2).
  8. Install the chassis wiring harness clip (3) to the fuel pipe.
  9. Lower the vehicle.
  10. Install the fuel feed and EVAP pipes to the engine compartment fuel pipes.
  11. Install the fuel pipes to the retainer clip and tighten the nut to 28 N·m (21 lb ft).
  12. Tighten the fuel filler cap.
  13. Connect the negative battery cable. Battery Negative Cable Disconnection and Connection.
  14. Inspect for leaks:
  15. 12.1. Turn ON the ignition for 2 seconds.
    12.2. Turn OFF the ignition for 10 seconds.
    12.3. Turn ON the ignition.
    12.4. Inspect for fuel leaks.
  16. Install the engine cover. Refer to Engine Cover Replacement.