Clunking Vibration type sound

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blakehaas

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My kona has started making this sound:
https://www.dropbox.com/s/ik3xx9y50f9w000/HyundaiKonaNoise_1600Miles.wav?dl=0
I have 1600 miles on it.

I looked online and it sounds identical to this:


I am super disappointed to have this issue. I hate having problems with cars and I'm pretty sure this will be a nightmare to fix for me since I'm located in Minnesota and the car isn't sold here. Going to need MASSIVE evidence to have it fixed as my dealership has no idea about this car.
 
blakehaas said:
My kona has started making this sound:
https://www.dropbox.com/s/ik3xx9y50f9w000/HyundaiKonaNoise_1600Miles.wav?dl=0
I have 1600 miles on it.

I looked online and it sounds identical to this:


I am super disappointed to have this issue. I hate having problems with cars and I'm pretty sure this will be a nightmare to fix for me since I'm located in Minnesota and the car isn't sold here. Going to need MASSIVE evidence to have it fixed as my dealership has no idea about this car.
Click to expand...

(Great audio recording) That is a first reported on this forum if you are referring to the popping sound starting at 0:34 (I thought it was strictly applicable to the Niro).
Perhaps you could send that clip to a Hyunda dealer as close as possible to your location, hopefully they can communicate with Hyundai corp given the distance you would have to travel for repairs.
Good luck - keep us informed.
 
electriceddy said:
(Great audio recording) That is a first reported on this forum if you are referring to the popping sound starting at 0:34 (I thought it was strictly applicable to the Niro).
Perhaps you could send that clip to a Hyunda dealer as close as possible to your location, hopefully they can communicate with Hyundai corp given the distance you would have to travel for repairs.
Good luck - keep us informed.
Click to expand...
Are we referring to the"Wheel of Fortune" sound buried under the VESS? If so, ya, that would bug me too.
 
blakehaas said:
My kona has started making this sound:
https://www.dropbox.com/s/ik3xx9y50f9w000/HyundaiKonaNoise_1600Miles.wav?dl=0
I have 1600 miles on it.

I looked online and it sounds identical to this:


I am super disappointed to have this issue. I hate having problems with cars and I'm pretty sure this will be a nightmare to fix for me since I'm located in Minnesota and the car isn't sold here. Going to need MASSIVE evidence to have it fixed as my dealership has no idea about this car.
Click to expand...

I now have a considerable interest in this thread. I was not looking (listening) for it but occurred this morning.
After driving about 40 km , shut off the car then restarted about 15 minutes later when I heard the popping sound over the VESS (sunroof open and all windows open about 3/4 inch).
It happened as I started to gradually accelerate to about 20 km/h and then the noise stopped. I pulled over and restarted but the popping sound did not re-occur after that.
So at this point it is intermittent and will have to wait and see if it re-occurs. There is no point taking the car to the dealer at this stage (only noticed it once) but I will mention it to the service tech.
The manufacture date is Dec 22/18, Kona Ultimate model , 5244 km.
Car has been great to this point with no noticeable/unusual drive train sounds .
:(
 
Just curious, but do you notice the noise in the car? I don't think I'd even notice that. Do you have to have your windows down to notice it?
 
doggyworld said:
Just curious, but do you notice the noise in the car? I don't think I'd even notice that. Do you have to have your windows down to notice it?
Click to expand...
When I noticed it the windows were open a bit and the sunroof was open as well, and has not re-occurred since yesterday. I don't think having the windows open is necessary as it seemed to be coming from the firewall/floor area. Sounds like the wav. file blakehaas supplied.
 
Agreed, the later .wav recording is quite good.

What's interesting about this is it doesn't seem to be strictly load-dependent,
i.e. it can come and go under consistent acceleration, or even constant
speed. You'd expect a bad bearing or something to be at least somewhat
affected by torque.

It's also gotta be somewhere around the motor, as the wheels certainly
weren't rotating that fast. Supported by "coming through the firewall /
floor", i.e. low down.

Blake, if there's a way you can clamp your stereo mics in meaningful
locations down near the motor, on various axes, you might be able to
localize it in a few short runs. Listening on headphones, I got a pretty
good soundstage of your under-hood.

_H*
 
hobbit said:
Agreed, the later .wav recording is quite good.

What's interesting about this is it doesn't seem to be strictly load-dependent,
i.e. it can come and go under consistent acceleration, or even constant
speed. You'd expect a bad bearing or something to be at least somewhat
affected by torque.

It's also gotta be somewhere around the motor, as the wheels certainly
weren't rotating that fast. Supported by "coming through the firewall /
floor", i.e. low down.

Blake, if there's a way you can clamp your stereo mics in meaningful
locations down near the motor, on various axes, you might be able to
localize it in a few short runs. Listening on headphones, I got a pretty
good soundstage of your under-hood.

_H*
Click to expand...
I've tried putting the recorder lower to try and isolate where it's coming from. It seems to sound the same as when I place the recorder on the top of the motor mount.
Here is a recording with no Vess.
https://www.dropbox.com/s/m2k3b2b1ts5v2e1/HyundaiKonaEV_NO_VESS_NOISE.wav?dl=0
 

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electriceddy said:
Much clearer, I assume you pulled the VESS plug at the front end under the hood?
Click to expand...
Yea, it made it easier to hear the issue.

I dropped the car off at the dealership. They said they may keep it until Monday. I left instructions for them on how to reproduce. Now its just a waiting game. I bet i wont hear anything till monday.
 
blakehaas said:
Yea, it made it easier to hear the issue.

I dropped the car off at the dealership. They said they may keep it until Monday. I left instructions for them on how to reproduce. Now its just a waiting game. I bet i wont hear anything till monday.
Click to expand...
Hopefully they diagnose the problem, order the gearbox and let you drive your car while it is being shipped.
 
Update on the issue.
The dealership can reproduce the problem. They of course have no idea what is causing it. They are going to refer to their hyundai engineer out of Chicago on monday to see what they think the problem is.

I told them about some of the other cars with the same issue and referred them to the medicine hat alberta hyundai for reference to see if they agree its the same issue (hint it is). They didnt seem thrilled that I provided all that info but hopefully it gets passed along and we skip some wasted time.

Will update monday with engineer findings.
 
I can’t get over the negative reaction you’re getting from your dealership. Btw, where are you?
I’ve now done about 150km since the g/box was fitted and so far it’s sounding great although I’m a bit dubious about how long it will last, bearing in mind the original g/box was good initially.
 
MLKFLOT said:
I can’t get over the negative reaction you’re getting from your dealership. Btw, where are you?
I’ve now done about 150km since the g/box was fitted and so far it’s sounding great although I’m a bit dubious about how long it will last, bearing in mind the original g/box was good initially.
Click to expand...
Minnesota.
They aren't being condescending or anything. I can just see that im overwhelming them with information and they probably hear 30 times a day what someone thinks the problem is and are like ok, yep we'll look into it. I'm sure they are a decent shop. Im just doing a lot of hovering and partially doing their job and they are probably a little off-put by it. Most customers are very hands off and fully unaware of any problems their cars have so they just let the guys do their thing. Its a bit different with me knowing a lot about this issue when they are in the dark.

There are some kona drivers that have over 40k miles on their cars, so hopefully there are good gearboxes out there. Time will tell but thankfully we have a wonderful warranty.
 
blakehaas said:
Update on the issue.
The dealership can reproduce the problem. They of course have no idea what is causing it. They are going to refer to their hyundai engineer out of Chicago on monday to see what they think the problem is.

I told them about some of the other cars with the same issue and referred them to the medicine hat alberta hyundai for reference to see if they agree its the same issue (hint it is). They didnt seem thrilled that I provided all that info but hopefully it gets passed along and we skip some wasted time.

Will update monday with engineer findings.
Click to expand...
Did you leave the VESS disconnected or did you re-connect the plug before taking it in?
Also did they let you keep the car to drive or give you a loaner?
 
electriceddy said:
Did you leave the VESS disconnected or did you re-connect the plug before taking it in?
Also did they let you keep the car to drive or give you a loaner?
Click to expand...
Disconnected. If they ask, I'll say it was so they could hear the problem better.
They have my car until monday. I have no loaner. I'll find out monday if i get to take the car back or if i get a long term loaner.
 
Update. Dealership called. The engineer said I need a new reducer gear. Part is back-ordered till November. They are keeping the car and giving me a loaner.
So im thinking 2-3 weeks and we will see if the install fixes the issue. Will update in a few weeks.
 
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