The fuel pump casing (front) tend to loose its seal, ..this is normal wear and tear. Make sure that the fuel tank is de-pressurized before making any attempt to replace the pump by removing the fuel cap. Make sure that the battery is dis-connected and replace the check valve while you are down there. Check all hoses for integrity. It is fairly easy to replace defective fuel pump. Have some rags, cap and containers to catch some fuel drippings on the inlet line. Hope this helps....