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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L (LTG) - Repair Instructions >> Repair Instructions >> Plastic Collar Quick Connect Fitting Service >> Installation Procedure
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Installation Procedure

  1. Apply a few drops of clean engine oil to the male pipe end.
    Fig 1: Lubricating Male Pipe End
    GM155425Courtesy of GENERAL MOTORS COMPANY
    WARNING: Always apply a few drops of clean engine oil to the male pipe ends before connecting the fuel pipe fittings. This will ensure proper reconnection and prevent a possible fuel leak. Always replace O-rings.
  2. Push both sides of the quick-connect fitting together in order to cause the retaining feature to snap into place.
    Fig 2: Connecting Quick-Connect Fittings
    GM21855Courtesy of GENERAL MOTORS COMPANY
  3. Pull on both sides of the quick-connect fitting to make sure the connection is secure.
    Fig 3: View Of Quick-Connect Fitting
    GM155399Courtesy of GENERAL MOTORS COMPANY
  4. Insert the tube in the connector until the retainer snaps in place.
    Fig 4: TI Loc Style
    GM2005895Courtesy of GENERAL MOTORS COMPANY
  5. Push down on the redundant latch (1) until it is fully engaged and snapped into position.
  6. Insert the tube in the connector until the retainer snaps in place.
    Fig 5: Redundant Latch
    GM2264192Courtesy of GENERAL MOTORS COMPANY
  7. Push down on the second latch (1) in order to secure the connection.
  8. For the plastic connector type 8, depress the latch (1) while inserting the connector (3) on to the pipe (2).
    Fig 6: Latch And Connector
    GM2714205Courtesy of GENERAL MOTORS COMPANY
  9. Move the latch (1) upward in order to secure the connection.
  10. Inspect for leaks using the following procedure:
    1. Turn the ignition ON, with the engine OFF for 2 seconds.
    2. Turn the ignition OFF, for 10 seconds.
    3. Turn the ignition ON, with the engine OFF for 2 seconds.
    4. Turn the ignition OFF.
    5. Inspect for leaks.