2005 Cadillac DeVille BaseFACTORY OEM SERVICE 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.
    Fig 1: Lubricating Male Pipe End
    GM155425Courtesy of GENERAL MOTORS CORP.
  1. Apply a few drops of clean engine oil to the male pipe end.
  2. Fig 2: Connecting Fittings (Plastic Collar)
    GM155771Courtesy of GENERAL MOTORS CORP.
  3. Push both sides of the quick-connect fitting together in order to cause the retaining tabs/fingers to snap into place.
  4. Fig 3: Ensuring Secure Connection
    GM155399Courtesy of GENERAL MOTORS CORP.
  5. Pull on both sides of the quick connect fitting in order to make sure the connection is secure.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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