my car is newer only 21k miles.. still under a lot of warranties. When I open the hood you can hear the engine clicking its pretty consistent and isn't very loud.., but it is very noticeable. Also I just opening the hood and a slight burning smell was coming from the engine area There is no visable leaks. Engine looks clean and in shape. I don't drive it like a maniac. However I was doing 80mph on the interstate and gave it some gas to open her up and see what she was like and anything after 80mph was in highest gear and the engine seemed to be revving up and sounded like it was going to blow up lol is that normal? obviously not asport car.