GM Service Manual Online
For 1990-2009 cars only

Fuel Tank Replacement Pickup

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. Remove the fuel filler pipe. Refer to Filler Tube Replacement .
  3. Drain the fuel from the tank. Refer to Fuel Tank Draining .
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  5. Object Number: 617032  Size: SH
  6. Remove the fuel tank front shield (4) (without underbody shield package).

  7. Object Number: 617041  Size: SH
  8. Remove the fuel tank shield (4 wheel drive with underbody shield package).

  9. Object Number: 616757  Size: SH
  10. Support the fuel tank.
  11. Notice: Ensure that the rollover valve connection and the fuel sender connections are disconnected prior to lowering the fuel tank more than 51 mm (2 in) in order to prevent damage to the fuel tank and the fuel sender.

  12. Remove the fuel tank front strap (1).

  13. Object Number: 616751  Size: SH
  14. Remove the fuel tank rear strap (4).
  15. Disconnect the EVAP pipe from the rollover valve.
  16. Notice: Use extreme care when lowering the fuel tank. The fuel sender is made of plastic. Lowering the fuel tank may damage the fuel sender.

  17. Carefully lower the fuel tank no more than 51 mm (2 in).

  18. Object Number: 331713  Size: SH
  19. Disconnect the fuel pressure sensor and the fuel sender electrical connectors.
  20. Disconnect the fuel feed pipe, the fuel return pipe, and the evaporative emission (EVAP) pipe at the fuel sender.
  21. Remove the fuel tank from the vehicle.

  22. Object Number: 331709  Size: SH
  23. Remove the fuel sender from the fuel tank. Refer to Fuel Sender Assembly Replacement .

Installation Procedure


    Object Number: 331709  Size: SH
  1. Install the fuel sender into the fuel tank. Refer to Fuel Sender Assembly Replacement .

  2. Object Number: 616741  Size: SH
  3. Install the fuel tank insulators.

  4. Object Number: 331713  Size: SH
  5. With the aid of an assistant, position and support the fuel tank.
  6. Raise the fuel tank.
  7. Connect the fuel feed pipe, the fuel return pipe, and the EVAP pipe at the fuel sender.
  8. Connect the fuel pressure sensor and the fuel sender electrical connectors.
  9. Connect the EVAP pipe to the rollover valve.

  10. Object Number: 616754  Size: SH

    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.

    Important: When removing or replacing the fuel tank, the fuel tank support fasteners should never be reused. Always use new fasteners when installing the fuel tank.

  11. Install the rear fuel tank strap (4) and the protector (2) to the crossmember with the bolt (3) and the retainer (1).
  12. Tighten
    Tighten the fuel tank strap bolt to 18 N·m (13 lb ft).


    Object Number: 616751  Size: SH
  13. Install the rear fuel tank strap to frame bolt (3).
  14. Tighten
    Tighten the fuel tank strap bolt to 18 N·m (13 lb ft).


    Object Number: 617034  Size: SH
  15. Install the rear fuel tank shield (without underbody shield package).

  16. Object Number: 617037  Size: SH
  17. Push the shield (2) onto the horizontal flange of the fuel tank (1).
  18. The shield (2) is designed with interference to the bottom of the fuel tank (3).

  19. Object Number: 617032  Size: SH
  20. Install the fuel tank front shield (4), washer (2), and nut (3) (without underbody shield package).
  21. Tighten
    Tighten the fuel tank shield nut to 25 N·m (18 lb ft).


    Object Number: 617041  Size: SH
  22. Install the fuel tank shield to the fuel tank strap bolt (5) with the washer (3) and the nut (4) (4 wheel drive with underbody shield package).
  23. Install the fuel tank shield to frame bolts (2).
  24. Tighten

    1. Tighten the fuel tank shield bolts (2) to 11 N·m (97 lb in).
    2. Tighten the fuel tank shield nut (4) to 25 N·m (18 lb ft).
  25. Install the fuel tank shield to crossmember bolts (1) and nuts (6).
  26. Tighten
    Tighten the fuel tank shield bolts and nuts to 23 N·m (17 lb ft).

  27. Install the fuel filler pipe. Refer to Filler Tube Replacement .
  28. Lower the vehicle.
  29. Refill the fuel tank.
  30. Install the fuel tank filler cap.
  31. Connect the negative battery cable.
  32. Inspect for leaks.
  33. 22.1. Turn ON the ignition for 2 seconds.
    22.2. Turn OFF the ignition for 10 seconds.
    22.3. Turn ON the ignition.
    22.4. Inspect for fuel leaks.

Fuel Tank Replacement 2-Door Utility

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. Drain the fuel from the tank. Refer to Fuel Tank Draining .
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Remove the left rear splash shield.

  5. Object Number: 617013  Size: SH
  6. Loosen the fuel fill hose clamp (2) and the vent hose clamp (1) at the fuel tank.
  7. Disconnect the fuel fill hose and the vent hose from the fuel tank.

  8. Object Number: 17538  Size: MH
  9. Remove the fuel tank shield.

  10. Object Number: 617056  Size: SH
  11. Support the fuel tank.
  12. Remove the fuel tank straps.
  13. Notice: Use extreme care when lowering the fuel tank. The fuel sender is made of plastic. Lowering the fuel tank may damage the fuel sender.

  14. Lower the fuel tank.

  15. Object Number: 331713  Size: SH
  16. Disconnect the fuel pressure sensor and the fuel sender electrical connectors.
  17. Disconnect the fuel feed pipe, the fuel return pipe, and the evaporative emission (EVAP) pipe at the fuel sender.
  18. Remove the fuel tank from the vehicle.

  19. Object Number: 331709  Size: SH
  20. Remove the fuel sender from the fuel tank. Refer to Fuel Sender Assembly Replacement .

Installation Procedure


    Object Number: 331709  Size: SH
  1. Install the fuel sender into the fuel tank. Refer to Fuel Sender Assembly Replacement .

  2. Object Number: 616744  Size: SH
  3. Install the fuel tank insulators.

  4. Object Number: 331713  Size: SH
  5. With the aid of an assistant, position and support the fuel tank.
  6. Raise the fuel tank.
  7. Connect the fuel feed pipe, the fuel return pipe, and the EVAP pipe at the fuel sender.
  8. Connect the fuel pressure sensor and the fuel sender electrical connectors.

  9. Object Number: 617056  Size: SH

    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.

    Important: When removing or replacing the fuel tank, the fuel tank support fasteners should never be reused. Always use new fasteners when installing the fuel tank.

  10. Install the fuel tank straps.
  11. Tighten
    Tighten the fuel tank strap nuts to 91 N·m (67 lb ft).


    Object Number: 617013  Size: SH
  12. Connect the fuel fill hose (2) and the vent hose (1) to the fuel tank.
  13. Tighten

        • Tighten the fuel fill hose clamp to 2.5 N·m (22 lb in).
        • Tighten the vent hose clamp to 1.7 N·m (15 lb in).
  14. Install the left splash shield.

  15. Object Number: 17538  Size: MH
  16. Install the fuel tank shield.
  17. Tighten
    Tighten the fuel tank shield bolts to 11 N·m (97 lb in).

  18. Lower the vehicle.
  19. Refill the fuel tank.
  20. Install the fuel tank filler cap.
  21. Connect the negative battery cable.
  22. Inspect for leaks.
  23. 15.1. Turn ON the ignition for 2 seconds.
    15.2. Turn OFF the ignition for 10 seconds.
    15.3. Turn ON the ignition.
    15.4. Inspect for fuel leaks.

Fuel Tank Replacement 4-Door Utility

Removal Procedure

  1. Drain the fuel from the tank. Refer to Fuel Tank Draining .

  2. Object Number: 747563  Size: SH
  3. If applicable remove the fuel tank shield (2).

  4. Object Number: 747554  Size: SH
  5. Loosen the fuel fill hose clamp (3) at the fuel tank (1).
  6. Disconnect the lower fuel fill hose (2) from the fuel tank (1).
  7. Disconnect the vent hoses from the fuel limiter vent valve.
  8. Disconnect the vent hose from the rollover valve at the front of the fuel tank.

  9. Object Number: 747556  Size: SH
  10. Disconnect the fuel pressure sensor and the fuel sender harness connectors (2, 3) from the fuel sender (1).

  11. Object Number: 747555  Size: SH
  12. Disconnect the fuel feed, return, and EVAP purge pipes (2, 3, 4), at the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service .

  13. Object Number: 747558  Size: SH
  14. Support the fuel tank.
  15. Remove the fuel tank straps (1).
  16. Remove the fuel tank and place in a suitable work area.
  17. Remove the fuel sender from the fuel tank. Refer to Fuel Sender Assembly Replacement .

Installation Procedure

  1. Install the fuel sender into the fuel tank. Refer to Fuel Sender Assembly Replacement .
  2. Install the fuel tank insulators.

  3. Object Number: 747558  Size: SH
  4. With the aid of an assistant, position and support the fuel tank.
  5. Notice: Tighten the strap fasteners by steps, alternating between the fasteners, until the specified torque is reached. A failure to tighten the strap fasteners as specified will cause the bottom of the tank to flex upward. This will result in the fuel gauge indicating that there is fuel remaining in the tank when the tank is empty.

    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.

  6. Install the fuel tank straps (1).
  7. Tighten

        • Tighten the fuel tank strap nut (3) to 18 N·m (13 lb ft).
        • Tighten the fuel tank strap bolt (2) to 18 N·m (13 lb ft).

    Object Number: 747555  Size: SH
  8. Connect the fuel feed, return, and EVAP purge pipes (2, 3, 4) at the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service .

  9. Object Number: 747556  Size: SH
  10. Connect the fuel pressure sensor and the fuel sender harness connectors (2, 3) to the fuel sender (1).
  11. Connect the vent hose to the rollover valve at the front of the fuel tank.
  12. Connect the vent hoses to the fuel limiter vent valve.

  13. Object Number: 748093  Size: SH
  14. Connect the lower fuel fill hose (13) to the fuel tank and lower fuel fill tube (12).
  15. Tighten
    Tighten the fuel fill hose clamps (1, 2) to 2.5 N·m (22 lb in).


    Object Number: 747563  Size: SH
  16. Install the fuel tank shield (2).
  17. Tighten
    Tighten the fuel tank shield bolts (3, 4) to 33 N·m (24 lb ft).

  18. Lower the vehicle.
  19. Remove the fuel fill cap and refill the fuel tank.
  20. Install the fuel tank filler cap.
  21. Connect the negative battery cable.
  22. Inspect for leaks using the following procedure:
  23. 15.1. Turn ON the ignition, with the engine OFF for 2 seconds.
    15.2. Turn OFF the ignition for 10 seconds.
    15.3. Turn ON the ignition, with the engine OFF.
    15.4. Inspect for fuel leaks.