NOISE WHEN IDLE DOWN WITH PROGRAM IN

[COWBOYBLADE]

FOR ALL YOU SO CALLED DIESEL FANATICS. I CANT BELIVE NOT ANYONE CAN ANSWER MY QUESTION ABOUT THE KNOCKING NOISE I HAVE WITH MY PROGRAMER IN MY TRUCK WHEN I IDLE DOWN.

[duallydave]

well im not a diesel fanatic but i can aswer ur question.its called timming rattle.its caused by the fact most programmers advance the injection timming.some more than others.mine does it and my dads does it,seems more noticable on a standard trans.i dont know excactly why it happens but i dont beleive it harms anything.like i said mines been doing for all of the 2 years going on 3 i have had the predator