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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Repair Instructions) >> Repair Instructions >> Metal Collar Quick Connect Fitting Service >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM12784Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    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.

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

  2. GM12786Courtesy of GENERAL MOTORS COMPANY

    Push both sides of the quick-connect fitting together in order to snap the retaining tabs into place.

  3. GM12787Courtesy of GENERAL MOTORS COMPANY

    Pull on both sides of the quick-connect fitting to make sure the connection is secure.

  4. GM730809Courtesy of GENERAL MOTORS COMPANY

    Install the retainer to the quick-connect fitting.

  5. 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.