Hissing noise coming from passenger side - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

krimzonwolf · 12-17-2018, 06:51 PM

Hi everyone,

I've got a 2015 Camaro LS with 29,000 miles on it. About three weeks ago me and my dad installed a K&N CAI, and ever since then it makes this sound:

This only occurs when I accelerate beyond 3000 RPMs. I've never heard anything like it before and it worries me. Any suggestions?

HOJO · 12-17-2018, 07:37 PM

That’s the sound of the throttle body sucking in air. You went from a closed air intake to an open air, now you hear the air making its way into the engine intake. Some guys with a V8 will get a swoosh sound when they turn the engine off as well. It’s perfectl normal.

krimzonwolf · 12-17-2018, 08:34 PM

Thanks! I'm just happy it's normal.

12-17-2018, 07:37 PM	#2
HOJO Drives: 2014 Camaro SS/RS 1LE 1967 Camaro Join Date: Oct 2013 Location: Fort Wayne, IN Posts: 874	That’s the sound of the throttle body sucking in air. You went from a closed air intake to an open air, now you hear the air making its way into the engine intake. Some guys with a V8 will get a swoosh sound when they turn the engine off as well. It’s perfectl normal.

12-17-2018, 08:34 PM	#3
krimzonwolf Drives: 1978 Camaro LT, 1973 Camaro Base. Join Date: Sep 2018 Location: Dothan, AL Posts: 6	Thanks! I'm just happy it's normal.