I've got a 2001 Nissan Sentra GXE with exactly 260,000km. A couple of hours ago as I was driving I heard some metal falling off the car. As a precaution I drove back home as I was close. I popped the hood and noticed that the belt tensioner snapped off and the belts came loose. I was wondering roughly how much would a replacement belt tensioner cost? I really hope it isn't expensive to replace as I am trying to save money for my move to Ohio.