GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 37088-A Tool Set, Fuel Line Quick-Connect Separator

Important: Relieve the fuel system pressure before servicing any fuel system connection. Refer to the Fuel Pressure Relief Procedure.

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief

  2. Object Number: 12775  Size: SH
  3. Grasp both sides of the quick-connect fitting. Twist quick-connect fitting 1/4 turn in each direction to loosen any dirt within fitting.
  4. Repeat for other fuel pipe fitting.
  5. Caution: Wear safety glasses when using compressed air in order to prevent eye injury.


    Object Number: 155410  Size: SH
  6. Blow out dirt from quick-connect fittings at both ends, using compressed air.

  7. Object Number: 12777  Size: SH
  8. Squeeze plastic tabs of male end connector.

  9. Object Number: 12778  Size: SH
  10. Pull connection apart.
  11. Repeat for the other fitting.

  12. Wipe off the male pipe end using a clean shop towel.
  13. Clean or replace components/assemblies as required.

Installation Procedure

Caution: In order to reduce the risk of fire and personal injury, before connecting fuel pipe fittings, always apply a few drops of clean engine oil to the male pipe ends.

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.


    Object Number: 155425  Size: SH
  1. Apply a few drops of clean oil to the male pipe end.

  2. Object Number: 155771  Size: SH
  3. Push both sides of the quick-connect fitting together in order to cause the retaining tabs/fingers to make sure snap into place.

  4. Object Number: 155399  Size: SH
  5. Pull on both sides of the quick connect fitting in order to make sure the connection is secure.
  6. Tighten the fuel fill cap.
  7. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical.
  8. 5.1. Turn the ignition ON for 2 seconds.
    5.2. Turn the ignition Off for 10 seconds.
    5.3. Turn the ignition ON .
    5.4. Check for fuel leaks.
  9. Reinstall the fuel injection sight shield. Refer to Fuel Injector Sight Shield Replacement in engine mechanical.