GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2001 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Fuel Hose/Pipes Replacement - Chassis

Removal Procedure

    Object Number: 172963 Size: SH

    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 the Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining .
  4. Clean all the fuel pipe connections and the surrounding areas before disconnecting the pipes in order to avoid possible contamination of the fuel system.
  5. Disconnect the engine compartment fuel feed pipe (2) from the chassis fuel feed pipe (3). Refer to Metal Collar Quick Connect Fitting Service .
  6. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    7. Object Number: 173551 Size: SH
  7. Remove the rear fuel pipe shield attaching nuts (3) and bolt (6).
  8. Remove the rear fuel pipe shield (4).
  9. Remove the front fuel pipe shield attaching nuts (1).
  10. Remove the front fuel pipe shield (2).

    11. Object Number: 12603 Size: SH
  11. Disconnect the fuel feed pipe (1) from the outlet side of the fuel filter (2). Discard the O-ring.

    12. Object Number: 356450 Size: SH
  12. Disconnect the fuel return pipe (2) at the rear quick connect fitting. Refer to Plastic Collar Quick Connect Fitting Service .
  13. Remove the fuel pipe attaching hardware and the fuel pipes. Note the position of the fuel pipes for installation.

Installation Procedure

    Object Number: 173403 Size: SH

    Important: 

       • When replacing the fuel pipes, always replace them with original equipment or parts that meet the GM specifications for those parts. The replacement pipes must have the same type of fittings as the original pipes in order to ensure the integrity of the connection.
       • Do Not use copper or aluminum tubing to replace steel tubing. Only tubing meeting the 124-M specification or its equivalent is capable of meeting all pressure, corrosion and vibration characteristics necessary to ensure the durability standard required.

  1. Position the fuel pipe to the frame rail.

    2. 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.

  2. Loosely install the clip stud in the indicated position.

    3. Object Number: 173409 Size: SH
  3. Loosely install the clip stud in the indicated position.

    4. Object Number: 173412 Size: SH
  4. Loosely install the clip stud in the indicated position.

    5. Tighten
    Tighten the 3 studs to 5 N·m (44 lb in).


    Object Number: 355819 Size: SH
  5. Align the fuel pipe clips to the indicated positions.
  6. Install the front pipe clip bolts.

    7. Tighten
    Tighten the front pipe clip bolts to 4.5 N·m (40 lb in).


    Object Number: 355800 Size: SH
  7. Align the fuel pipe clip to the indicated position.
  8. Install the pipe clamp stud.

    9. Tighten
    Tighten the pipe clamp stud to 5 N·m (44 lb in).


    Object Number: 356450 Size: SH
  9. Connect the fuel return pipe (2) at the rear quick connect fitting. Refer to Plastic Collar Quick Connect Fitting Service .

    10. Object Number: 12603 Size: SH
  10. Connect the fuel feed pipe (1) to the fuel filter (2).

    11. Tighten
    Tighten the fuel feed pipe fitting to 30 N·m (22 lb ft).


    Object Number: 355809 Size: SH
  11. Install the fuel pipes into the rear pipe clip.
  12. Align the fuel pipes in a flat position.
  13. Install the rear pipe clip bolt.

    14. Tighten
    Tighten the rear pipe clip bolt to 5.5 N·m (49 lb in).


    Object Number: 173551 Size: SH
  14. Position the front fuel pipe shield (2) to the 3 fuel pipe clip studs and the brake pipe clip stud (7).
  15. Install the pipe shield nuts (1).

    16. Tighten
    Tighten the pipe shield nuts to 5 N·m (44 lb in).

  16. Position the rear fuel pipe shield (4) to the fuel pipe stud and the fuel pipe clip stud (5).
  17. Loosely install the pipe shield nuts (3).
  18. Install the pipe shield bolt (6).

    19. Tighten

    1. Tighten the pipe shield bolt to 5 N·m (44 lb in).
    2. Tighten the pipe shield nuts to 5 N·m (44 lb in).
  19. Lower the vehicle.

    20. Object Number: 172963 Size: SH
  20. Connect the engine compartment fuel feed pipe (2) to the chassis fuel feed pipe (3). Refer to Metal Collar Quick Connect Fitting Service .
  21. Refill the fuel tank.
  22. Tighten the fuel filler cap.
  23. Connect the negative battery cable.
  24. Inspect for leaks.
    25. 24.1. Turn ON the ignition for 2 seconds.
    24.2. Turn OFF the ignition for 10 seconds.
    24.3. Turn ON the ignition.
    24.4. Inspect for fuel leaks.
  25. Perform the idle learn procedure. Refer to Idle Learn .