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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 229 (Engine Control System & Fuel - Hybrid (Hp2) 6.0L (LFA) - Introduction (2 Of 2)) >> Repair Instructions >> Metal Collar Quick Connect Fitting Service >> Disconnect Procedure

Disconnect Procedure

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Line Quick-Connect Fitting Retainer
    GM1238589Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With 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.
    CAUTION: 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.
  7. Fig 4: View Of Quick Connect Locking Tabs (Metal Collar)
    GM12782Courtesy of GENERAL MOTORS CORP.
  8. Pull the fuel line connection apart.
  9. NOTE: 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.