I know what rod knock sounds like at its worse but what does it sound like in the first stages when you first get it? i have a clack clack clack noise coming from under my car but my car runs smooth nothing is abnormal ive had this clack there since i bought the car and its not gotten worse or gone away i took a stethscope (sp?) i had laying around for some reason and i crawled under the car and listened to the oil pan i can hear the crank and shit goin around but no clack what could this be? ive heard rod knock will make a double clack on each round this is just a single its always there no matter if the car is cold or warm and i cant hear it while driving due to engine noise and sorts but its always there at idle im getting really paranoid about rod knock so much to the point where im thinking about going 1jz to hide from it. :sadance: