Irritating humming noise.

[narsnail]

I had this noise on my winter tires which are Toyos on 18s with a square setup. It would only happen while turning, at a specific point during the turn. Not all the time either. Sounded like it was coming from the front but its hard to place.

I switched back to the stock rims/tires since it warmed up, and its gone, no more noise. The car was aligned with the stock tires on it; they only balanced the winters for me so I'm wondering if the stock alignment didn't agree with the winter tires.

 

[rocket23]

or they screwed up the alignment..and with a different compound of rubber you're not noticing the defect in the alignment......just an idea.

 

[TigerGT64]

Bumping this up:

I am experiencing a sound with my car too that sounds like someone blowing over a glass bottle. This noise you hear (when my first tires cross the bump) happens at a constant rate throughout my drive at various intensities and it is really getting annoying.

Is this similar to what you experienced?

I had a lot of noise problem very similar. Went to two Kia dealers (in Australia) and eventually, with the car up on a hoist we saw that the side skirts on the drivers side had loosened and the plastic lugs that hold them in place had come out. The result was a gap in the side skirts to the cars frame and that was causing wind noise when the car got up to speed. When we found it, we thought it cannot be the cause - but it was 100% - punched the lugs back in with the back of the fist until they clicked in place - noise gone. Took 6 months and two Kia dealers to find it and a lot of frustration and me thinking i was going mad. One Kia dealer even told me he lugs were missing - they weren't, they were there, they had just come out

 

[rocket23]

Ya know ya kinda wish they used regular body bolts instead drilled holes and plastic plugs.

 

[matt0127]

Took mine to my dealer recently. They found that the trim clips on the rocker panel were causing the issue. Sure enough when I got it back the buffeting was gone.

 

[Pandru]

Took mine to my dealer recently. They found that the trim clips on the rocker panel were causing the issue. Sure enough when I got it back the buffeting was gone.

Interesting, I have my car at the dealer for the howling noise and the technician has a case open with headquarters and the engineers to try and figure it out. You had the sound of blowing over an open bottle while driving?

 

[matt0127]

Interesting, I have my car at the dealer for the howling noise and the technician has a case open with headquarters and the engineers to try and figure it out. You had the sound of blowing over an open bottle while driving?

It could be described like that. I always thought of it sounding like one of the rear windows were cracked open even though they weren't.

 

[Pandru]

It could be described like that. I always thought of it sounding like one of the rear windows were cracked open even though they weren't.

I’ll certainly mention your fix the next time I talk to them, they have another forum members Stinger there for the same issue, both new 2021s

 

[flysmartt]

Took mine to my dealer recently. They found that the trim clips on the rocker panel were causing the issue. Sure enough when I got it back the buffeting was gone.

Just wondering where those trim clips are located?

 

[flysmartt]

I'm not sure if this helps anyone but the buffeting type sound I've been hearing on my 2019 is almost gone at the moment, and the only thing I've done other than complain to my wife is I had an oil change and tire rotation last month and had the dealer crisscross the tires. No idea why that would help but for now no headaches.

 

[MerlintheMad]

Just wondering where those trim clips are located?

I'm told that they are under the rocker panels, and if they're not seated all the way, then, when you push up firmly from beneath you'll feel and hear the clips seat fully. I tried this and barely felt one spot move a little with hardly a sound; everything else along the whole length of both rocker panels felt solid.

 

[flysmartt]

Thanks!

 

[Pandru]

It could be described like that. I always thought of it sounding like one of the rear windows were cracked open even though they weren't.

Did they put on new trim clips are secure the existing ones better?

 

[matt0127]

Did they put on new trim clips are secure the existing ones better?

I believe they secured the existing ones.

 

[StingsLikeABee]

Still encountering these issues as mentioned earlier. Recently I noticed that my steering wheel vibration gets more intense in tandem with the sound. Kia dealer said it was the struts, but lo and behold the noise did not dissipate with new struts. My trim clips on the rocker panel seems secure but I'll check them again.

I found this thread that I think compares with our issues: Intermittent VIbration

It seems like the poster ended up having a Michelin tire rep confirm that the tire was the issue and after it was replaced it fixed the sound. Could this issue also be caused by improper balance/alignment? Or maybe a driveline/driveshaft vibration issue?

Here is my post on another thread with videos for reference: Road/tire noise.

 

[foreverstorm]

My experience with having a low frequency vibration build up in the cabin at 60km/h was the dealership replacing the diff to try solve the problem but it made it a hundred times worse, it became extremely loud. The dealers then replaced a bunch of things until they found it to be the propeller shaft. They replaced it but I feel the sound is still there, much quieter and only and the speed has to be much closer to 60km/h before it starts. Time will tell if it gets worse.

 

[MerlintheMad]

Welcome into the open, @foreverstorm. What in the heck is a "propeller shaft"? Is it what the radiator fan is attacked to? Sounds like crap shooting in the dark to me! Not confidence-building in the least. I hope that your ride is acceptably quiet from now on. (then again, after this, you'll by hypersensitive - if you weren't already - to every little vibrational change)

 

[foreverstorm]

Welcome into the open, @foreverstorm. What in the heck is a "propeller shaft"? Is it what the radiator fan is attacked to? Sounds like crap shooting in the dark to me! Not confidence-building in the least. I hope that your ride is acceptably quiet from now on. (then again, after this, you'll by hypersensitive - if you weren't already - to every little vibrational change)

Also known as tail shaft or drive shaft. Yeah it is... it doesn't explain why the noise got worse when it was mated to a new diff initially. Maybe the diff or transmission tolerances aren't quite right.

 

[rocket23]

Welcome into the open, @foreverstorm. What the heck is a propeller shaft?

It's a drive shaft it will always be a driveshaft and thats that....My guess would be the same people who made up the terminology that thought up...'''cursive'' instead of writing, and tissue paper for toilet paper, and cross training for weightlifting with jumping jacks.......

 

[MerlintheMad]

it doesn't explain why the noise got worse when it was mated to a new diff initially.

If the vibration was an out of true driveshaft, and they put in a new differential, that tight fitting would definitely set up a new harmonic that in this case seems to have been noisier; no surprise, actually. How long did you drive with the new differential? Because the longer an out of true driveshaft interfaced with a replacement differential, the more unevenly worn it would become. So, if that has occurred (some diff wear), the brand new driveshaft is interfacing with a worn differential; this could go on indefinitely unless "they" replace both at the same time.