So I went to lock the car, and it gave a little resistance, then turned a 1/4, and stays unlocked Sometimes if I do it about 20 times(total guess), it will lock, and the door is actually locked. If I use the switch on the console, the lock works fine. I tested that it will unlock too(had a friend unlock from outside after I used the console switch). Does it sounds like I need a new lock mechanism or just a new barrel?

 

First try this