At the Cancun meeting of the world trade talks in September 2003, a powerful new grouping of developing countries emerged. Led by rapidly growing countries and major exporters like Brazil, China, India, and South Africa, this group has been powerful enough to challenge the EU and the US in trade negotiations.
If the situation is really bad it can even be caused by the rod itself contacting the crankshaft journal (where the bearing has become out of place). The most common cause of rod knock is due to a spun bearing (bearing itself actually spins in the end of the rod so it becomes out of position).
This is proven by the part that is called as the knock sensor. It is connected to your vehicle's computer system in order to determine and serve as a warning signal against engine knocks. This occurs when the spark plug fails to trigger the fuel operations properly. As a result, your engine cannot run smoothly.