yea the cp3 thing seems to only tick at idle and the symptoms just dont fit mine.
my truck sounds good at idle and i put a pipe to the cp3 and listened and it was quiet
02fuelhog what rpms is ur rattle worst at? and can u get a vid that will pick up the noise
mine is worst at about 1700-2100 rpm and i also hear it when accelerating from a dead stop. if im cruisin in that rpm range on the highway and give my truck light to moderate throttle i get a bad sounding clatter. its pretty quiet but the nature of the sound concerns me. sounds like marbles in the engine
at full throttle i cant hear it or its not ther not sure which it is
ive read alot of threads about this and im not to concerned now bc many others have the same symptoms only ther clatter is louder than mine and theyv had no issues...yet
seems the general idea is this is related to timing or bigger injectors advancing the timing, "doing away" with the pilot injection (thats the short version)
Mine does it in the same rpm range. The higher the rpm though it doesn't get any louder. It stays the same.
I have read also that whatever tuner you have can cuase this as well. I'm currently running the BD triple pup (not for much longer though) maybe the timming vs fuel curve is causing this tick.
My truck only has 27k on it and it's done since i got it with 21k on it.
I biult a custom CAI and now i can't hear it most of the time.
Who know's what this might be, guess it won't hurt anything. We'll see with time.