u/ayala19_photo

I have a Craftsman 919.168700 Air Compressor. I noticed that when the machine is running there is air coming out of the pressure release line fitting. Sounds like it’s coming from the ferrule or on the sides of the pipe if that makes sense. It is only when it is running and not when the air compressor stops. I feel like it takes a while to fill up and have not gotten it to shut off automatically. How exactly do I go about fixing this? Could I just replace the end nut? Not sure if I have to use a puller to get it off or if they make replacement lines? Any help is appreciated.