GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Remove the quick-connect fittings at the engine compartment fuel feed pipes and the return connecting pipes. Refer to Metal Collar Quick Connect Fitting Service .
  3. Plug the fuel pipes.
  4. Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  5. Raise the vehicle.
  6. Remove the quick-connect fittings at the fuel sender and the nylon fuel feed and return connecting pipes. Refer to Metal Collar Quick Connect Fitting Service .
  7. Remove the exhaust heat shield.

  8. Object Number: 102056  Size: SH
  9. Remove the fuel pipe mounting bolts from the body clips.
  10. In the repairable areas, cut a piece of fuel hose 100 mm (4 in) longer than portion of the pipe removed. If more than a 152 mm (6 in) length of pipe is removed, use a combination of steel pipe and hose so that hose lengths will not be more than 254 mm (10 in), including the hose overlap on the fuel pipe.


    Object Number: 102255  Size: SH
  11. Remove the fuel pipes from the body clips.
  12. Notice: If necessary, remove rust or burrs from the fuel pipes with an emery cloth. Use a radial motion with the fuel pipe end in order to prevent damage to the O-ring sealing surface. Use a clean shop towel in order to wipe off the male tube ends. Inspect all the connections for dirt and burrs. Clean or replace the components and assemblies as required.


    Object Number: 49888  Size: SH
  13. Remove the fuel pipes (1) to be serviced.

Installation Procedure


    Object Number: 49888  Size: SH
  1. Install the fuel pipe and hose hardware (1).

  2. Object Number: 102255  Size: SH
  3. Position the fuel pipes in the body clips.

  4. Object Number: 102056  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.

  5. Install the fuel pipe mounting bolts into the body clips.
  6. Tighten
    Tighten the bolts to 6.0 N·m (53 lb in).

  7. Install the exhaust heat shield.
  8. Tighten

        • Tighten the exhaust shield bolt to 2.0 N·m (18 lb in).
        • Tighten the exhaust shield nuts to 1.0 N·m (9 lb in).
  9. Remove the caps on the fuel pipes.
  10. Install the quick-connect fittings on the fuel pipes. Refer to Metal Collar Quick Connect Fitting Service .
  11. Install the quick-connect fittings at engine compartment fuel feed and return pipes.
  12. Lower the vehicle.
  13. Reconnect the negative battery cable.
  14. Use the following procedure in order to inspect for fuel leaks:
  15. 10.1. Turn on the ignition for two seconds , leaving the engine off .
    10.2. Turn off the ignition for 10 seconds.
    10.3. Turn on the ignition, leaving the engine off.
    10.4. Inspect for fuel leaks.