T Kono

Have you tried poking around with a stethoscope?

99666

Still cannot figure it out :-/

Poked around with pretty much everything. Could it be a bad cat?

99666

@Kevin would love to get your expert take!

Kevin

At some point you might need to get the car into a shop and on the lift.
Usually the power steering pump and pulley whine are higher pitch.
I'd focus on your exhaust, mounts (engine and tranny)

99666

Thanks @Kevin ! It seems to generate a vibration as well. Super audible when listened to with speakers that have bass.
Sounds like I need to get it into a shop. I've scoured the web, and all it does is lead me to dead ends.

Thanks again!

krp220

please keep us posted. i have a very similar situation going on with mine
forgot to ask earlier, but this whirring noise make it seem like your your exhaust drones really really bad?

99666

Yeah sound is there at 2-3500 rpm in neutral, parked, driving. Engine running super strong. But I am nervous that it seems to be getting more prominent. Shop thinks it has something to do with exhaust. I'm going to check a few things this weekend.

I am getting a vibration that seems to correlate.

@krp220 I have a LWFW. Do you?

Also, share a sound clip if you can. These things are most certainly best heard with a desktop speaker setup since it's boomy.

krp220

i don't have a LWFW (not that i know of at least - the car is new to me)
i'm in the Northeast so the car as been put away for the winter, so a video will have to wait until closer to Spring, but the noise i'm getting doesn't happen in neutral.

theprf

Did you try running it with the serpentine belt removed? That takes a lot of items out of play - water pump, PS pump, alternator, A/C compressor, and the 3 idlers. All of these have bearings that can fail.
Obviously don't run it for an extended time with the water pump not hooked up.

krp220

@99666 did you ever get this sorted out? my car is going to the shop this week to get the same noise diagnosed