It's been 12 years, and zero reason yours would be the same cause other than blind luck. Go ahead and start a new thread, with the most info and description you can. A good audio clip would be good even though camera phones SUCK at that

FYI a deep, loud, hammering noise is usually rod knock but that is a 99% total guess. Use a long wooden handled screwdriver as a stethoscope to locate the area its coming from.