SOLVED - Strange noise

[Qwest4air]

Yes, I believe It was a combination of a bad design, along with driving over 80 miles an hour in the heat, with a headwind that was at least 20 miles an hour.
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Here’s a picture of it after it happened.

I also had my fender do the same thing the day of delivery at freeway speeds going into a headwind, seems like it’s common place for the fender to dislodge

 

[CBH]

I too have had a similar issue, I’m suspecting it is the flaps on the cold air intake located in the hood

This could be a tough noise to eradicate let alone investigate. I’m thinking about placing a GoPro camera under the hood.

 

[bujeeep]

I too have had a similar issue, I’m suspecting it is the flaps on the cold air intake located in the hood

I thought the same exact thing. I’m gonna do some test to see

 

[CBH]

I too have had a similar issue, I’m suspecting it is the flaps on the cold air intake located in the hood

So, if the three Hydro Glide flaps on the passenger side are for channeling water I should be able to temporarily tape them shut during my 70+ MPH troubleshooting ride without impacting airflow, right?

 

[SDJeepn]

My 13 YO son, who is an auto detailer found the rubber plug for the drivers side rubber floor mat on the floor of the garage. Without that, you have a direct hole where you can see (and hear) the road below. I had no idea that my Jeep had nothing between the driver and the street but a 2 inch piece of rubber in that particular spot but now I know. Is there anyone who sells a sound deadening floor liner for the 392? Thanks!

I added sound dampening under the carpet in my 392 and added a liner for the one touch roof. Made a decent different in noise. No it'll never be a quiet ride, but I can comfortably listen to the radio at a 12 volume on the highway at 70mph vs 14-15 volume before. I have sensitive ears, so for me that was totally worth it!

Hothead liner for the roof. I did the grey one, like how it looks.

Same company also sells sound dampening for the floor. I did their Sound Assassin Package - Full Floor Package (30 Sheets). Had some leftover because the area in the back under the flap you can lift up where the spare tire tools go is just a plastic bucket, there's nothing underneath to put the sound dampening on, but I had included that square footage in the calc.

 

[CBH]

I added sound dampening under the carpet in my 392 and added a liner for the one touch roof. Made a decent different in noise. No it'll never be a quiet ride, but I can comfortably listen to the radio at a 12 volume on the highway at 70mph vs 14-15 volume before. I have sensitive ears, so for me that was totally worth it!

Hothead liner for the roof. I did the grey one, like how it looks.

Same company also sells sound dampening for the floor. I did their Sound Assassin Package - Full Floor Package (30 Sheets). Had some leftover because the area in the back under the flap you can lift up where the spare tire tools go is just a plastic bucket, there's nothing underneath to put the sound dampening on, but I had included that square footage in the calc.

How difficult was it to remove the seats, carpet, etc., in order to install the Sound Assassin Package for the floor? How long did the whole job take? Did you run into any difficulties?

 

[SDJeepn]

How difficult was it to remove the seats, carpet, etc., in order to install the Sound Assassin Package for the floor? How long did the whole job take? Did you run into any difficulties?

Wasn't difficult at all because I paid for a local shop to do the install for me

 

[bujeeep]

Anyone still having this issue? its not the intake flaps for me, nor the fender liner? any suggestions or ideas?