I've got a 1996 Dodge Neon. The trunk lock is getting harder and harder to open. The key slides into the lock just fine but then it will not turn either way until I get it just right. It's getting worse and worse each day. At first I thought that it might be that I have a worn key but the spare key (hardly ever used) does the same thing. Any suggestions?
My second question is about a black cylendar right behind the bumper on the front right side of the vehicle. It has two hoses going into the top of it. What is this thing?