Fuel Line Coupler: Service and Repair

Removal Procedure

Tools Required
J37O88 Tool Set, Fuel Line Quick-Connect Separator

Important: Relieve the fuel system pressure before servicing any fuel system connection. Refer to the Fuel Pressure Relief Procedure.

1. Slide the dust cover from the quick-connect fitting.






2. Grasp both sides of the fitting. Twist the female connector 1/4 turn in each direction to loosen any dirt within the fitting.

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







3. Blow dirt out of the fitting using compressed air.







4. Choose the correct tool from J37O88 Tool Set for the size of the fitting. Insert the tool into the female connector, then push inward to release the locking tabs.







5. Pull the connection apart.

Notice: If it is necessary to remove rust or burrs from a fuel pipe, use emery cloth in a radial motion with the pipe end in order to prevent damage to the O-ring sealing surface.

6. Using a clean shop towel, wipe off the male pipe end.

7. Inspect both ends of the fitting for dirt and burrs. Clean or replace the components as required.

Installation Procedure

Caution: To Reduce the Risk of Fire and Personal Injury: Before connecting the fitting, always apply a few drops of clean engine oil to the male pipe end. This will ensure proper reconnection and prevent a possible fuel leak. During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.







1. Apply a few drops of clean engine oil to the male pipe end.
2. Push connectors together to cause the retaining tabs / fingers to snap into place.
3. Once installed, pull on both ends of each connection to make sure they are secure.
4. Reposition dust cover over the quick-connect fitting.