Chattering noise !! HELP!!

[game2o3]

When the car is cold and i Hit it, it doesnt make the noise, but once it warms up, and you take off at low rpm itll make a nasty ass chattering noise, if i got full throttle to the floor itll kind of go away reaching 5,000 rpm's.. sounds like something loose, but there's nothing loose, just really bad noise and i cant figure it out.. it doesnt make it when im being really easy on the gas, but when i step on it, you can hear it, and its driving me nutss, i cant figure it out. i thought it was the tranny, but its not.. someone said my cat, but i doubt it. this happen to anyone ?? HELP CTV!!!!!

[JDM_HOE]

Do you have a chipped ecu?? Could be running lean? Doesn't sound like it's bearings, Jack it up see if it's the cat

[POS civic]

x2 on it bein the cat. ive heard plenty of broken cats do exactly what youre talking about. when the exhaust is cold the pipes are contracted so theres no room for the loose bits to rattle around, but when it warms up the pipe expands making everything loose again. If its not that it could possibly be detonation in your engine

[crzycivic93]

Def. sounds like exhaust issue.. Check to see if ur muffler is str8....

[game2o3]

Thx guyss, im gonna look into fetting the cat checked although i jacked it up and tapped the cat it didnt make any noises, sounded solid

[bLaZinPapi121]

mine does someting similar and its the cat

[bLaZinPapi121]

i jacked my car up and hit it with a rubber mallet and it didnt make the noise but when i dropped the the cat i saw the inside was all broken. it only rattles at a very specific rpm

[game2o3]

It does it all the time..

[game2o3]

bump this ttt

[sean-john]

Sounds like a muffler bearing

[game2o3]

which is where?

[sean-john]

Srry dude I was just kidding but yeah do u still got the heat shield on the oem cat I ripped mine off that might be it

[game2o3]

yeah i was gonna say, an exhaust bearing, this dudes smokin some shitttttt hahah, its not the heatshields.. lets say im at a dead stop, and i rev it up to like a grand and do to take off, as the pressure gets put onn it makes a nasty ass sound, i cant explain it, its like a chattering noise, sounds like a shyt load of washers are loose and rattling to fuckk

[mark11017]

I just did my muffler bearings 130 shipped couldn't beat it.

Anyway it's not detination it wouldent be that loud. Try getting a video an see of we can pick up the noise by listening.

[mark11017]

Hows car run? Could be broken valve spring