My car makes a cracking sound when I make a sharp left turn

This "cracking" could be caused by a few different things (struts, tie rods, or bushings). The best thing to do is to have a mechanic put it on a lift and check everything out (left and right sides). When turning your relieving stress on one side of the vehicle and putting it on the other and vice versa, this being said, there could be a failing component on the left or right of the vehicle but if your hearing noises that weren't there before, get it checked and taken care of as soon as possible.