Purge valve leaks until I put a 10 socket and twist

[GoodWork]

Hey guys I have faulty purge valve that works until it doesn’t anymore.. I installed two new purge valves and it’s still doing the same thing. It works fine up until around 30 minutes of drive time. I then go under truck and put a 10 socket and ratchet it (twist) until it stops again. I’m a little away from the house about 1500 miles and was wondering what I’m missing. I love learning and hopefully I can get it done if not I’ll have to call roadside :/

Thank You for your time and patience