Silverado 2500 4WD V8-6.6L DSL Turbo (2010)
Fuel Line Coupler: Service and Repair
Metal Collar Quick Connect Fitting Service
Metal Collar Quick Connect Fitting Service
Special Tools
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J 44581 Fuel Line Disconnect Tool
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J 43178 Fuel Line Disconnect Tool
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J 41769 Fuel Disconnect Tool
Removal Procedure
1. Remove the retainers from the fuel feed and return pipe quick connect fittings.
Warning
Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.
2. Using compressed air, blow any dirt or debris from around the fitting.
3. Using the correct end of J 44581 for the size of the fitting. Insert J 44581 into the female connector, then push inward in order to release the
locking tabs.
4. If the vehicle is a cab/chassis, it may be necessary to use J 43178 in order to release the quick connect fittings at the sending unit.
5. If disconnecting the fuel return line, it may be necessary to use J 41769 in order to release the quick connect fitting.
6. Pull the connection apart.
7. Use a clean shop towel in order to wipe off the male end.
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.
