Spyder Pilot '08 air leaks!!!!!!!Please HELP!!

[spartan2527]

Whenever I try to put in my co2 tank the gas leaks out of the trigger. I know the problem is the air valve body. So I replaced it. But then even though after I replaced the air valve body and lubed the air valve body, air or gas still leaks out of the trigger. Does anyone know what the problem is????????
Please HELPPPPPPPP!!!!!!!!!!!!!