I have a 2013 GX. Last week it started making some sort of cracking sound. I am not able to figure out what is wrong with it. It seems to be coming from the engine. Every time I accelerate the noise increases! It's kinda creepy and I am worried about my car. I have given it at Service Plus Car Care Centre, Etobicoke. Has anyone had this issue before? Did it get fixed? What could be wrong with my car? Please help...