High pitched whistle or whine during highway driving

[WarMachineM3]

I started hearing this sound during highway speeds. It sounds like a high pitched, faint whistle. Sound increases a little as I step on the throttle. I hear it with the windows up and sounds like it's coning from the engine bay. I read up on it and people say it maybe tbe pcv, but not sure. Thinking of bringing it for warranty, but I an tuned with E, what should I do first. I suspect it's a leak from the charge pipes. Will try to upload a video soon.

https://youtube.com/shorts/A5IFIBASMTA?feature=share

[shaolinx]

I had something similar but mine happened when it was warmed up. Something about a leaky pipe below in front of the engine. Bring it in !

[AND1_M3]

Originally Posted by WarMachineM3

I started hearing this sound during highway speeds. It sounds like a high pitched, faint whistle. Sound increases a little as I step on the throttle. I hear it with the windows up and sounds like it's coning from the engine bay. I read up on it and people say it maybe tbe pcv, but not sure. Thinking of bringing it for warranty, but I an tuned with E, what should I do first. I suspect it's a leak from the charge pipes. Will try to upload a video soon.

https://youtube.com/shorts/A5IFIBASMTA?feature=share

make sure your charge pipes are tight, not cracked.

[AND1_M3]

I had same issue and my charge pipe was lose as I had done plugs and didn't sit it properly.

[zillymc]

Originally Posted by WarMachineM3

I started hearing this sound during highway speeds. It sounds like a high pitched, faint whistle. Sound increases a little as I step on the throttle. I hear it with the windows up and sounds like it's coning from the engine bay. I read up on it and people say it maybe tbe pcv, but not sure. Thinking of bringing it for warranty, but I an tuned with E, what should I do first. I suspect it's a leak from the charge pipes. Will try to upload a video soon.

https://youtube.com/shorts/A5IFIBASMTA?feature=share

Can you repost the video - broken link