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Home >> GMC >> 2002 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L >> Repair Instructions >> Quick Connect Fitting(s) Service (Metal Collar) >> Installation Procedure

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.

  1. Apply a few drops of clean engine oil to the male pipe end.
    Fig 1: Applying Engine Oil To Male Pipe End (Metal Collar)
    G01599454Courtesy of GENERAL MOTORS CORP.
  2. Push both sides of the fitting together in order to snap the retaining tabs into place.
    Fig 2: Pushing Sides Of Fitting Together (Metal Collar)
    G01599455Courtesy of GENERAL MOTORS CORP.
  3. Once installed, pull on both sides of the fitting to ensure the connection is secure.
  4. Install the retainer to the quick-connect fitting.
  5. Install the fuel filler cap.
  6. Connect the negative battery cable.
    Fig 3: Pulling On Sides Of Fitting (Metal Collar)
    G01599456Courtesy of GENERAL MOTORS CORP.