GM Service Manual Online
For 1990-2009 cars only

Fuel Tank Filler Evaporative Emission Pipe Replacement Large

Special Tools

    •  EN-49411 Angular Meter
    •  GE-49683 Torque Wrench ½

For equivalent regional tools, refer to Special Tools.

Removal Procedure


    Object Number: 1889920  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. Remove the fuel feed line retainer (1) from the fuel line bracket.
  4. Disconnect the fuel feed line quick connect fitting (3) from the fuel rail. Refer to Plastic Collar Quick Connect Fitting Service.
  5. Disconnect the evaporative emission (EVAP) line quick connect fitting (2) from the EVAP purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service.
  6. Cap the fuel rail pipe and the EVAP purge solenoid in order to prevent possible fuel and/or EVAP system contamination. Remove the brake, fuel, and EVAP pipe clips (1, 2) from the studs on the front of dash.

  7. Object Number: 1797674  Size: SH
  8. Remove the brake pipes from the retainer.
  9. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  10. Object Number: 2156634  Size: SH
  11. Remove the right rear frame fastener (1, 2).
  12. Remove the right rear frame reinforcement (3).

  13. Object Number: 1789402  Size: SH
  14. Disconnect the fuel tank fuel feed pipe quick connect fitting (1) from the chassis fuel feed pipe (3). Refer to Plastic Collar Quick Connect Fitting Service.
  15. Disconnect the fuel tank EVAP pipe quick connect fitting (2) from the chassis EVAP pipe (4). Refer to Plastic Collar Quick Connect Fitting Service.
  16. Cap the chassis fuel and EVAP pipes in order the prevent possible fuel and/or EVAP system contamination.

  17. Object Number: 1797679  Size: SH
  18. Remove the brake, fuel and EVAP pipe retainers (5) from the underbody studs.
  19. Remove the brake pipes from the retainers.
  20. Remove the fuel feed/EVAP pipe assembly from the vehicle.
  21. Place the pipe assembly on a work bench.
  22. Open and remove the upper fuel feed/EVAP pipe retainer (3).
  23. Open and remove the front of dash fuel feed/EVAP pipe retainers (4).
  24. Open and remove the underbody retainers (5).
  25. Replace any retainers as necessary.

Installation Procedure


    Object Number: 1797679  Size: SH
  1. Install and close the underbody retainers (5).
  2. Install and close the front of dash fuel feed/EVAP pipe retainers (4).
  3. Install and close the upper fuel feed/EVAP pipe retainer (3).
  4. Position the fuel feed/EVAP pipe assembly to the vehicle.
  5. Install the brake pipes to the retainers.
  6. Install the brake, fuel and EVAP pipe retainers (5) to the underbody studs.

  7. Object Number: 1789402  Size: SH
  8. Remove the caps from the chassis fuel and EVAP pipes.
  9. Connect the fuel tank EVAP pipe quick connect fitting (2) to the chassis EVAP pipe (4). Refer to Plastic Collar Quick Connect Fitting Service.
  10. Connect the fuel tank fuel feed pipe quick connect fitting (1) to the chassis fuel feed pipe (3). Refer to Plastic Collar Quick Connect Fitting Service.
  11. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2156634  Size: SH
  12. Install the right rear frame reinforcement (3) with fastener (1) but do not tighten yet.
  13. Install the right rear frame fastener (2) with GE-49683 Torque Wrench ½ .
  14. Tighten
    170 N·m (125 lb ft) plus an additional 90 degrees using the

  15. EN-49411 Angular Meter
  16. Note: Use a new drivetrain and front suspension frame fastener.

  17. Install the right rear frame reinforcement fastener.
  18. Tighten
    the fastener (1) to 90 N·m (67 lb ft).

  19. Lower the vehicle.

  20. Object Number: 1797674  Size: SH
  21. Install the brake pipes to the clips.
  22. Install the brake, fuel, and EVAP pipe clips (1, 2) to the studs on the front of dash.

  23. Object Number: 1774990  Size: SH
  24. Remove the caps from the fuel rail pipe and the EVAP purge solenoid.
  25. Connect the EVAP line quick connect fitting (2) to the EVAP purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service.
  26. Connect the fuel feed line quick connect fitting (3) to the fuel rail. Refer to Plastic Collar Quick Connect Fitting Service.
  27. Install the fuel feed line retainer (1) to the fuel line bracket.
  28. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  29. Tighten the fuel fill cap.
  30. Inspect for leaks.

Fuel Tank Filler Evaporative Emission Pipe Replacement Short


Object Number: 2156637  Size: SH

Callout

Component Name

Preliminary Procedure

Remove the engine sight shield.

    • Vehicles equipped with LTD / U20XE. Refer to Engine Sight Shield Replacement.
    • Vehicles equipped with LE5 / U24XE. Refer to Engine Sight Shield Replacement.

1

Fuel Tank Filler Evaporative Emission Pipe Retainer (Qty: 2)

2

Fuel Tank Filler Evaporative Emission Pipe