Hey I was wondering if anyone could tell me what something is. I wish I had a pic but the camera is dead and I have to charge it. Anyway, its a small line that comes out of the firewall right next to the air conditioner unit( just right of it). Its tiny in diameter and on the end of it it has a detachable connector of some sort that looks like one of those old toy tops only way smaller. I have a 403 if that helps. Thanks
Chris