My 2013 has made a slight buzzing noise heard inside the cabin (windows up) while accelerating hard, under load, from 2500-3000 RPM. Only does it with PSE engaged. It doesn't seem to be any of the interior trim vibrating (I've fixed many of those), and the noise seems to fill the cabin to the point that I can't tell where it's originating from.

Has anyone else dealt with this issue? My car is going to the dealer on Wednesday, and I'd like to provide any information that might help them find the problem.

 

Any idea if it's coming from inside or outside? I had a similar problem, but it was the rear window trim just above the rear seat headrests. I had removed the piece to mod my PSE tubing and hadn't pushed the clips back all the way.

The increased volume with PSE may also be triggering some sort of vibration around the car; it may even be related to the valves themselves.

 

could it be the seat belt mounts mine buzz at will.try pushing the contact points on the b pillars and see if it quiets down.

 

It's very difficult to hear where it's coming from. Almost sounds like the whole roof is vibrating, but pressing against the roof liner doesn't change anything. It could be something vibrating underneath the floor of the car, but opening the windows just makes the noise impossible to hear because of all the extra noise.

 

I'll give that a try.