GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 Lucerne 🢒 Engine 🢒 Engine Controls and Fuel - 4.6L 🢒 Filler Tube Replacement

Removal Procedure

    Object Number: 1671746 Size: SH
  1. Drain the fuel tank to a level below the fuel fill hose, if necessary. Refer to Fuel Tank Draining.
  2. Remove the left rear wheel house liner. Refer to Rear Wheelhouse Panel Liner Replacement.
  3. Using compressed air, blow any dirt and/or debris from around the fuel fill pipe and evaporative emission (EVAP) line connections.
  4. Loosen the fuel fill hose clamp (1) at the fill pipe.

    5. Object Number: 1671747 Size: SH
  5. Disconnect the fuel fill hose (2) from the fuel fill pipe.
  6. Disconnect the fuel tank EVAP recirculation line quick connect fitting (1) from the fill pipe line. Refer to Plastic Collar Quick Connect Fitting Service.

    7. Object Number: 1671968 Size: SH
  7. Remove the fuel fill pipe ground strap bolt.

    8. Object Number: 1671749 Size: SH
  8. Disconnect the fill pipe vent line (2) quick connect fitting from the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service.
  9. Lower the vehicle.

    10. Object Number: 1671967 Size: SH
  10. Remove the fuel tank fill pocket opening grommet.
  11. Remove the fuel tank fill pipe out through the opening in the pocket.

Installation Procedure

    Object Number: 1671967 Size: SH
  1. Install the fuel tank fill pipe in through the opening in the pocket.
  2. Install the fuel tank fill pocket opening grommet. Ensure all 4 retaining tabs are seated.
  3. Raise the vehicle.

    4. Object Number: 1671749 Size: SH
  4. Connect the fill pipe vent line (2) quick connect fitting to the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service.

    5. Object Number: 1671968 Size: SH
  5. Position the ground strap to the bracket.

    6. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the fuel fill pipe ground strap bolt.

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


    Object Number: 1671747 Size: SH

    Important: Clean the fill pipe or any dirt or debris. Ensure the fill pipe is installed to the original depth to the fill hose. The fill pipe bead must be inserted into the hose past the clamp position.

  7. Connect the fuel tank EVAP recirculation line quick connect fitting (1) to the fill pipe line. Refer to Plastic Collar Quick Connect Fitting Service.
  8. Connect the fuel fill hose (2) to the fuel fill pipe.

    9. Object Number: 1671746 Size: SH
  9. Tighten the fuel fill hose clamp (1) at the fill pipe.

    10. Tighten
    Tighten the clamp to 4 N·m (35 lb in).

  10. Install the left rear wheel house liner. Refer to Rear Wheelhouse Panel Liner Replacement.
  11. Inspect the fuel tank fill pocket opening grommet. Ensure the grommet is seated flush to the body.
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  13. Perform the following procedure in order to inspect for leaks:
    14. 13.1. Turn ON the ignition, with the engine OFF for 2 seconds.
    13.2. Turn OFF the ignition for 10 seconds.
    13.3. Turn ON the ignition, with the engine OFF.
    13.4. Inspect for fuel leaks.
  14. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.