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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L (LTG) - Repair Instructions >> Repair Instructions >> Metal Collar Quick Connect Fitting Service >> Removal Procedure
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Removal Procedure

    WARNING:

    Refer to Diesel/Gasoline Vapors Warning .

  1. Relieve the fuel system pressure. Fuel Pressure Relief 
  2. GM1348200Courtesy of GENERAL MOTORS COMPANY

    Remove the retainer from the quick connect fitting.

  3. GM12776Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.

    Blow dirt out of the fitting using compressed air.

  4. GM12780Courtesy of GENERAL MOTORS COMPANY

    Depending on the fuel line size and ability to access the fitting, choose the appropriate tool: CH-41769  fuel line disconnect tool set or CH-44581  fuel line disconnect tool. Insert the CH-41769  fuel line disconnect tool set or CH-44581  fuel line disconnect tool into the female connector, then push inward to release the locking tabs.

  5. GM12782Courtesy of GENERAL MOTORS COMPANY

    Pull the connection apart.

  6. 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.

  7. Using a clean shop towel, wipe off the male pipe end.
  8. Inspect both ends of the fitting for dirt and burrs.
  9. Clean or replace the components as required.