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Home >> Cadillac >> 2010 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System & Fuel System - 5.3L, 6.0L, 6.2L - Repair Instructions >> Repair Instructions >> Metal Collar Quick Connect Fitting Service >> Disconnect Procedure
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Disconnect Procedure

    Fig 1: Fuel Feed Line To Engine Quick-Connect Fitting Retainer
    GM1238589Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (CH-48027)  or Fuel Pressure Relief (Without CH-48027) .
  2. Remove the fuel line retainer.
  3. Fig 2: Blowing Dirt Out Of Fitting (Metal Collar)
    GM12776Courtesy of GENERAL MOTORS CORP.
    WARNING: Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.
  4. Using compressed air, blow any dirt or debris from around the connection.
  5. Fig 3: View Of Quick Connect Locking Tabs (Metal Collar)
    GM12780Courtesy of GENERAL MOTORS CORP.
  6. Using the correct tool from the J 41769  , insert the tool into the female connector end, then push inward in order to release the quick connect locking tabs. See Special Tools .
  7. Fig 4: View Of Quick Connect Locking Tabs (Metal Collar)
    GM12782Courtesy of GENERAL MOTORS CORP.
  8. Pull the fuel line connection apart.
  9. CAUTION: If necessary, remove rust or burrs from the fuel pipes with an emery cloth. Use a radial motion with the fuel pipe end in order to prevent damage to the O-ring sealing surface. Use a clean shop towel in order to wipe off the male tube ends. Inspect all the connections for dirt and burrs. Clean or replace the components and assemblies as required.
  10. Use a clean shop towel in order to wipe off the male connection end.
  11. Inspect both ends of the fitting for dirt and burrs. Clean or replace the components as required.