GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41769 Fuel Line Quick Disconnect Tool

Removal Procedure


    Object Number: 12776  Size: SH
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Caution: Wear safety glasses when using compressed air in order to prevent eye injury.

  3. Using compressed air, blow any debris from around the fittings.

  4. Object Number: 12780  Size: SH
  5. Using J 41769 , insert the correct size tool into the female connector, then push inward to release the locking tabs.

  6. Object Number: 12782  Size: SH
  7. Pull the fuel line connection apart.
  8. 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.

  9. Using a clean shop towel, wipe off the male pipe end.
  10. Inspect both ends of the fuel line connections for dirt and burrs. Clean or replace the components as required.

Installation Procedure


    Object Number: 12784  Size: SH

    Caution: Always apply a few drops of clean engine oil to the male pipe ends before connecting the fuel pipe fittings in order to reduce the risk of fire and personal injury. This will ensure proper reconnection and prevent a possible fuel leak. During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.

  1. Apply a few drops of clean engine oil to the male pipe end.

  2. Object Number: 12786  Size: SH
  3. Push both sides of the fuel line connections together in order to snap the retaining tabs into place.

  4. Object Number: 12787  Size: SH
  5. Once installed, pull on both sides of the fuel line connections to ensure that the connection is secure.