if you hear a loud kocking noise uh that probably means that you are about to throw a rod and if you motor shuts off, dont turn it back on…i know this cause i threw a rod through the oil pan, then when the car threw itselfout of gear and the motor cut off, i tried to turn it over again so i could make it to the gas station, and when i did that, a piston came through the head and blew my valve cover off:D …at least i know when i break ****, i break it right:D