GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Relieve fuel system pressure. Refer to Fuel Pressure Relief .
  2. Remove the quick-connect fittings at engine compartment fuel feed and return connecting lines. Refer to Metal Collar Quick Connect Fitting Service .
  3. Plug fuel lines.
  4. Caution: Provide additional support when a vehicle is on a hoist in the following ways:

       • Before removing parts, support the opposite end. This helps prevent the vehicle from slipping off.
       • Before removing major components, chain the vehicle frame to the hoist pads at the same end as the removal. This helps avoid a tip-off.
    Failure to follow these precautions could cause vehicle damage, serious personal injury, or death.

  5. Raise vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the quick-connect fittings at fuel sender and nylon fuel feed and return connecting lines. Refer to Metal Collar Quick Connect Fitting Service .
  7. Plug the fuel pipes to prevent leakage.
  8. Remove the fuel pipe mounting hardware from pipes.
  9. 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.

  10. Remove the fuel pipes to be serviced.
  11. In the repairable areas, cut a piece of fuel hose 100 mm (4 in) longer than portion of the line 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 hose overlap on fuel line.

Installation Procedure

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.

  1. Position the fuel pipe in the body clips.
  2. Install the fuel pipe and hose hardware.
  3. Remove the caps on the fuel pipes.
  4. Install the quick-connect fittings on the fuel pipes. Refer to Metal Collar Quick Connect Fitting Service .
  5. Lower the vehicle.
  6. Remove the caps covering the fuel lines if required.
  7. Install the engine compartment fuel line quick-connect fittings. Refer to Metal Collar Quick Connect Fitting Service .
  8. Install the fuel filler cap.
  9. Install the negative battery cable.
  10. Inspect for fuel leaks through the following steps:
  11. 10.1. Turn the ignition switch to the ON position for two seconds.
    10.2. Turn the ignition switch to the OFF position for ten seconds.
    10.3. Turn the ignition switch to the ON position.
    10.4. Check for fuel leaks.