Removal Procedure

Remove the retainers from the fuel feed and return pipe quick connect fittings.
Using compressed air, blow any dirt or debris from around the fitting.

Fig 1: Blowing Dirt Out Of Fitting (Metal Collar)
Courtesy of GENERAL MOTORS COMPANY

WARNING: Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.
Insert the CH-41769 fuel line disconnect tool into the female connector, then push inward in order to release the locking tabs.

Fig 2: View Of Quick Connect Locking Tabs (Metal Collar)
Courtesy of GENERAL MOTORS COMPANY
Pull the connection apart.

Fig 3: View Of Quick Connect Locking Tabs (Metal Collar)
Courtesy of GENERAL MOTORS COMPANY
Remove the fuel line disconnect tool.
Use a clean shop towel in order to wipe off the male end.
Inspect both ends of the fitting for dirt and burrs. Clean or replace the components as required
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.