Sound While Idle
 

So I've been having this strange sound from the rear that sounds like a hum or whine in the vehicle only while in drive or manual mode and stopped. I drive an AT so the car automatically lurches forward with no brake, so I wedged it on a speed bump to stop the car without the use of the brakes and I still hear the noise. I feel like it could be from the rear but I'm not positive (it's not all that loud). Keep in mind that I don't hear it in neutral or park, only in drive and manual, and it goes away when driving, regardless of how slow.

Anyone have any idea?

My educated guess:
Exhaust resonance that only hits the right frequency to be heard under the conditions you described. Any slight change in those conditions and it goes away.

Think it could be a thing with stock exhaust?

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Without a doubt. The lack of soundproofing let's you here every little burble these things make.
Try siting in gear until you hear it and then give it just a touch of gas. I bet it goes away.

Yeah that's exactly it. It does seem to resonate the same tone the engine is making. Any way to fix it? It's started happening a month or so ago (I've owned the car since September) and it's incredibly frustrating

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Nope. There is nothing to fix since it isn't broke. As the exhaust ages it will change tones. Just wait it out and it will go away.


You can take a look at all the mounts and make sure nothing is rubbing but odds are it is internal.

You're lucky. All I hear are crickets and mine are loud. Spring must be mating season for our cars.

Don't worry, I can hear my crickets while driving sometimes. Lol

The ATs seem to be more prone to drone as well, I had the berk muffler delete for the longest time would get occasional drone. Gave it to a friend with a manual literally 0 drone as the RPMs are more easily controlled.....