HELP GRINDING NOISE????
So I was getting off the interstate and my car went from 3000 rpm to 2000 rpm in less than a couple of seconds without me pressing on the gas and not pressing on the break, and then I heard something pop and a grinding noise, I thought it might be my exhaust but that is still intact, engine sounds good when parked so could it be the trans or the diff its a 2000 v6 with 135,XXX miles, stock trans, stock diff, could it be the gears in the diff? any help would be great. Thanks in advance!!!