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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 (Plastic 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 fuel pipe end.
    Fig 1: Applying Engine Oil To Male Fuel Pipe End (Plastic Collar)
    G01599460Courtesy of GENERAL MOTORS CORP.
  2. Push both sides of the quick-connect fitting together in order to cause the retaining tabs to snap into place.
    Fig 2: Pushing Sides Of Quick-Connect Fitting Together (Plastic Collar)
    G01599461Courtesy of GENERAL MOTORS CORP.
  3. Once installed, pull on both sides of the quick-connect fitting to ensure the connection is secure.
  4. Install the fuel filler cap.
  5. Connect the negative battery cable.
    Fig 3: Pulling Sides Of Quick-Connect Fitting (Plastic Collar)
    G01599462Courtesy of GENERAL MOTORS CORP.