Considering these videos are recorded with an iphone mic might be why that original video is not super noticeable, but being on the vehicle hearing it and feeling at acceleration it was unmistakable that something was wrong. As I original stated, the new 3.6L sound have a normal clatter that sounds like a diesel compared to many other engines, but the clatter from this issue was more like an old Singer sowing machine between 2-3.5K and you could feel it, like the vibrations that an ARB compressor pushes through the chassis when you turn it on at that RPM range.
