GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42374 Fuel Line Quick Connect Separators

Removal Procedure

    Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

  1. Grasp both ends of one fuel line connection and twist 1/4 turn in each direction to loosen any dirt in quick-connect fitting.
  2. Caution: Wear safety glasses when using compressed air in order to prevent eye injury.

  3. Use compressed air in order to blow out dirt from the quick-connect fitting.
  4. Squeeze the plastic release tabs.
  5. Pull the connection apart.

Installation Procedure

    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. Make sure that the connectors are clean.
  2. Apply a few drops of clean engine oil to the male connector ends.
  3. Push the connectors together in order to cause the retaining tabs or fingers to snap into place.
  4. Once installed, pull on both ends of each connection in order to make sure that the connection is secure.
  5. Notice: Do not attempt to straighten any kinked nylon fuel lines. Replace any kinked nylon fuel feed or return pipes in order to prevent damage to the vehicle.

  6. After you connect all of the lines, crank the engine for a few seconds, turn OFF the engine if the engine starts. Check for any fuel leaks.