badeh2

iTrader: (1)

Sup guys, so I've noticed this metal noise coming from inside the engine area when I'm going from 4-7000 rpm in any gear. Almost sounds like a loose heat shield from my headers hitting? Or like loose metal in my transmission or something. Anyone have that issue? I don't hear it when I'm just cruising

fsttyms1

Have you gotten under the car and look for loose heat shields?

civicdrivr

iTrader: (9)

What mods are done to the car?

badeh2

iTrader: (1)

I have gone under nothing seems loose. Stock motor. Just lowered and axlebacks

anthracitecl

iTrader: (7)

I would check heat shield first. It could be cat too. Cause mine did that. Thats why i went with HFC.

badeh2

iTrader: (1)

Replace CAT? More info on HFC

anthracitecl

iTrader: (7)

High flow cat. My original cat made that rattling noise. It got worse and worse. I thought it was heat shield. so i removed heat shield. Noise was still there. I found out it was cat. I was gonna get OEM cat, but its expensive. So i just replaced with RT high flow cat. No problems since.

StreetKA

iTrader: (8)

Just rip the heat shield off and see if that makes a differance.

azeezp13

iTrader: (4)

I had this happen in my 1st gen, for me the rattling noise was caused by a bolt that became loose and was stuck inside the intake manifold, causing this loud rattling noise making the car sound like shit