Hood Vibration

[kocyk123]

Great to know that. I will be taking mine apart to inspect it. Will post pictures.

 

[hamed57]

Can you post a pic of the damaged area?

I put the sticky note to show the gaps. Almost all of them are separated. even the front ones.

 

[carguy75]

View attachment 20564View attachment 20565View attachment 20566View attachment 20567

Damn, I would take it to a body shop and ask what type of glue to use as well as how to repair it.

 

[hamed57]

Damn, I would take it to a body shop and ask what type of glue to use as well as how to repair it.

It would be a very good idea to get an idea from a body shop. It seems that 3M 5200 marine adhesive is a great glue. It is strong, permanent and also flexible witch is perfect for that spot.

 

[glennk]

Can the glue withstand repeated hot/cold cycles from the engine?

 

[kocyk123]

I removed the cover to inspect mine and almost all of them were lose:





And after:


I am letting it seat and cure for now. I will report back tomorrow and let you know if see an improvement.

 

[EdP]

Can the glue withstand repeated hot/cold cycles from the engine?

Good question as it would get a lot of cycles over time. Service temperature is -40 to 190.

 

[hamed57]

I removed the cover to inspect mine and almost all of them were lose:
View attachment 20603
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And after:
View attachment 20608

I am letting it seat and cure for now. I will report back tomorrow and let you know if see an improvement.

You are quick man!! I am still thinking and planing what to do with it. Good job,

 

[kocyk123]

Thanks! So I drove to work today and did avg speed of ~78mph and no vibration at all. I also did around 95mph for couple seconds and still no vibration yay! Feels solid after the fix. I have used the following adhesive:

3m black super weatherstrip adhesive (bought it at Autozone for $7)

I don't know what the long term result will be but I know that was the problem. @hamed57 thank you so much for guiding us the right direction! We all owe you a beer!

 

[nellie1289]

i just turned in my 2016 3.8 ultimate on a 2019 g70, but man my hood use to vibrate like crazy. wish i knew this thread during my 3 year ownership period!

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[Bourbonncigars]

Haven't noticed any vibration....but now I have to go look at my hood.

 

[kocyk123]

Day 2 - Update:

I was able to do 100mph on the hwy today with no cars in front of me so I was getting more air resistance which usually made the vibration worse and I haven't experience any vibration. I can confirm that the solution works! Now it is all about finding the right adhesive that will work for years...

 

[hamed57]

Day 2 - Update:

I was able to do 100mph on the hwy today with no cars in front of me so I was getting more air resistance which usually made the vibration worse and I haven't experience any vibration. I can confirm that the solution works! Now it is all about finding the right adhesive that will work for years...

I am going to glue mine today and let it cure over the weekend. I did more inspection and realized that this could be a design flaw and other 2015 and 2016 models could have the same problem. The metal sheet seems to be a little bit warped and makes a small gap. The glue that Hyundai used was not strong enough to bond them together.

 

[kocyk123]

You are right. Now I am wondering if the vibration coming from the hood was strong enough to cause the cupping or feathering on my tires. Would be nice if it did so at least I know it is fixed now. My tires are cupping and feathering but my alignment is good and suspension seems to be just fine (57k miles on the car).

 

[carguy75]

I am curious if the hoods are actually glued at those points or just sealed with a rubber compound to prevent vibration of the panels at key points that make contact.

I will just use some black silicon gasket maker if I notice that some of my sealed areas are cracked or gone.

 

[carguy75]

i just turned in my 2016 3.8 ultimate on a 2019 g70, but man my hood use to vibrate like crazy. wish i knew this thread during my 3 year ownership period!

Did you hear a noise from your hood?

 

[nellie1289]

Did you hear a noise from your hood?

No noise. Just at 60 plus it would flutter in center front by windshield.

 

[hamed57]

I am curious if the hoods are actually glued at those points or just sealed with a rubber compound to prevent vibration of the panels at key points that make contact.

I will just use some black silicon gasket maker if I notice that some of my sealed areas are cracked or gone.

I look further into it. I think you might be right. The rubber material is just there to make a cushion for the upper metal sheet and prevent vibration. I used some Ultra Black RTV Gasket Maker to fill the gap.
It was vibration free this morning driving to work. It feels very nice and solid.

 

[G-306795]

I look further into it. I think you might be right. The rubber material is just there to make a cushion for the upper metal sheet and prevent vibration. I used some Ultra Black RTV Gasket Maker to fill the gap.
It was vibration free this morning driving to work. It feels very nice and solid.

After 2 months, is it still vibration free?

 

[hamed57]

After 2 months, is it still vibration free?

Hi, it’s more than a year now. No vibration at all.