Yes the noise..I believe it is known as a "burp" but it sounds like grinding belts. Well..I had my belts replaced...and the X still makes the same grinding noise during cold weather starts...I've had the oil seperator and valve cover gasket replaced last month. I still can't identify what the noise is...But its the same as everyone else describes..Only during cold morning starts...Whatever the noise is..It's going to be hard to convinvce me that the noise is "normal".