Nissan 370Z Forum - Noise when idling in drive

Nissan 370Z Forum (http://www.the370z.com/)

- Exterior & Interior (http://www.the370z.com/exterior-interior/)

- - Noise when idling in drive (http://www.the370z.com/exterior-interior/132985-noise-when-idling-drive.html)

Noise when idling in drive

Anyone know what is making this noise? I only get it when idling in drive or neutral. Noticed it recently when I was at a red light and my music was off. It overpowered the noise of my exhaust when hearing it inside cabin.
https://youtu.be/C-vRVxjbbHI

The internals rotating in the engine???:icon08:

Nissan's Active Sound Control.
It is supposed to carry the best of the engine sounds in the cabin so you can hear your motor noise.
It makes my NISMO sound like a sport bike, from the driver's seat.
I hate it, but never remember to see if the dealer can turn it off.
The dealer has to do it thru the CAN system.

Kirk B.

Quote:

Originally Posted by Ultrakla$$ic (Post 3904725)

The internals rotating in the engine???:icon08:

I just re-watched the video on my computer and its not capturing the high pitch of the noise. It sounds like a knocking sound and not just internals rotating.

Quote:

Originally Posted by crazy4oldcars (Post 3904730)

Really? You are only getting this knocking sound when you are idling in drive? It is more apparent on my passenger side. Sounds more like something is wrong then giving the best of the engine sound.

Heard it might be serpentine belt being loose but checked it also and its sturdy and slack or twist to it. Will have to find time to stop by a shop to just double check for a peace of mind.

Quote:

Originally Posted by yingiee (Post 3904743)

I just re-watched the video on my computer and its not capturing the high pitch of the noise. It sounds like a knocking sound and not just internals rotating.

Really? You are only getting this knocking sound when you are idling in drive? It is more apparent on my passenger side. Sounds more like something is wrong then giving the best of the engine sound.

Heard it might be serpentine belt being loose but checked it also and its sturdy and slack or twist to it. Will have to find time to stop by a shop to just double check for a peace of mind.

I was basing my comment on what I heard in the video.
It was a bass thrumming sound, which I hear when my car and the, usually, pick up with dual exhaust are just out of sync.

Kirk B.