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Home >> Chevrolet >> 2016 >> Express 2500 Base, Van Cargo Extended, 6.6L Eng VIN L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.6L (LGH) - Repair Instructions >> Repair Instructions >> Metal Collar Quick Connect Fitting Service >> Installation Procedure

Installation Procedure

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.

    Fig 1: Oiling Male Pipe Ends
    GM12784Courtesy of GENERAL MOTORS COMPANY
  1. Apply a few drops of clean engine oil to the male connection end.
  2. Fig 2: Pushing Fittings Together
    GM12786Courtesy of GENERAL MOTORS COMPANY
  3. Push both sides of the fittings together in order to snap the retaining tabs into place.
  4. Fig 3: View Of Connector Connection
    GM12787Courtesy of GENERAL MOTORS COMPANY
  5. Once installed, pull on both sides of the connections in order to make sure the connection is secure.
  6. Fig 4: View Of Fuel Lines At Engine
    GM1378747Courtesy of GENERAL MOTORS COMPANY
  7. Install the retainers to the fuel feed/return pipes.
  8. Install the fuel fill cap.
  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .