Gasoline leak on 1996 Buick LeSabre

There is a fitting coming from the gas tank before the fuel filter leaking gas. How can I change this fitting.

Asked by for the 1996 Buick LeSabre
You may need to replace the fuel line containing the fitting in question on your 1996 Buick Le Sabre. If the fuel line goes to the fuel tank the tank will need to be removed to replace the line. If the fitting at the fuel filter is leaking perhaps the seals inside the fitting are damaged. Depending on the type of fitting you may be able to replace the seals.