Help me find this noise please!

[Stevewil131]

I have a noise that is caused by wind at high speed driving. It is not something that happens all the time because I dont drive that fast for the most part. It seems to happen at 80mph or above. The sound will also happen if I have a strong headwind at slower speeds ( as low as 60 with a strong headwind). The location of the sound seems to be coming from behind the big plastic panel next to the rear passenger seat, but may even be under the car. I have heard that there is an air vent to let pressure out of the car behind that panel and kinda wonder if this may be loose and flapping around at higher speeds. The noise is a flapping popping type of sound. I have searched the forums over and over and cant seem to come up with a fix for this. My car is a 2016 GT Premium. It has made this noise since brand new, I have no mods on the car with 3500 miles. I have had it at the dealer and they thought they had it fixed but no such luck. The noise is certainly caused by high speed wind. Any help would be greatly appreciated.

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[Dragster]

I had a noise coming from that area, and someone on here told me to open the trunk and reach up and fiddle with the insulation and stuff under there. For whatever reason, it worked. Hope it works for you as well, because I know that stuff is annoying as hell!

 

[Stevewil131]

I had a noise coming from that area, and someone on here told me to open the trunk and reach up and fiddle with the insulation and stuff under there. For whatever reason, it worked. Hope it works for you as well, because I know that stuff is annoying as hell!

I have checked all through that area. It really seems to be more on the right side of the car. But thanks for the heads up!

 

[wildsailor]

Do you roll your window up at elevated speeds on your way up to highway speed? I have noticed on mine that when I am getting on the highway and I roll my window up at 50+ MPH the window does not make a good seal because there must be a low pressure zone pulling the window out. If I roll it up on the ramp at 30-35 MPH for instance the seal is better and there is no whistle.

If this is not the case then the seal for the rear quarter window may be bad.

 

[SR56]

I get a whooshing that sounds like low level static, vent, or a speaker on. Only happens occasionally and I notice it at lower speeds or stopped. Crazy stuff.

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