I've read countless posts about these things ticking and until recently mine never did it. I started to notice it recently (13k miles) and it sounds exactly like some of the videos i've seen. You can't hear it if you are standing in front with the hood up, but it is most noticeable on the passenger side near the ground. I took it to World Ford this morning and fully expected them to say ops normal and try to send me on my way. I left it with them and was later told that the noise has to do with the "ac idler pulley". Actually they said there is a TSB that addresses this. Parts are on order and they gave me a rental to drive. While I hate having to leave the car with them, so far I am pleased with their service. I sure hope it's as simple as that and will update when I get it back.