2011 Civic LX-S Engine clicks/knocks during deceleration & initial acceleration
 

I just bought a brand new 2011 Honda Civic LX-S last month. The engine makes a very pronounced "click" and/or "knock" noise/sound (similar to engine knocking, but with a "click" to it as well) every time I decelerate (let off the gas), especially from low gears/speeds. It seems like something is definitely wrong. Any idea what might be causing this?