Vibration- need help

[Dohc98vteC]

I get a vibration getting on the freeway above 50+ in the morning especially. I had a rotation and balance done at Sams Club, but not much help. I went to the dealer last week, and they did a Roadforce balance and moved the tire to the rear. This was their fix, but of course now the vibration is coming from the rear.

Here is that printout, what do you guys say? I am going to check with a family friend that works at a tire shop as well. I guess my question is the tire or wheel bad?

 

[EA82]

If the tires are name brand I would say the wheel, if the tires are Chinese junk I'd say the tire.
Had a set of Junk tires that our camry came with which were impossible to balance, went to 3 different places without results, finally I got rid of them.

 

[spasm3]

You may have to look at the tire for tread runout, or it could be a bent wheel.

 

[Dohc98vteC]

The tires are Hankook Ventus S1 Noble2 this is on the car in my sig btw.

 

[MParr]

Tire or rim problem. If you have alloy wheels, it's most likely the tire. Jack the car up, spin the wheel assembly and look for it being out of round or the tread being out laterally. After you confirm the problem, take it back to the dealership and have them spin it up on their machine and look at the assembly. You will never balance something that is out of spec. You had two different goobers that didn't bother to look for a problem, they just went through the motions. I have been exactly where you are at on a couple of occasions.

 

[oldhp]

I think you answered your own question. "I went to the dealer last week, and they did a Roadforce balance and moved the tire to the rear. This was their fix, but of course now the vibration is coming from the rear." You have a bad tire, out of round high spot that is now on the rear. You need a new tire.

 

[teddyboy]

Originally Posted by MParr
Tire or rim problem. If you have alloy wheels, it's most likely the tire. Jack the car up, spin the wheel assembly and look for it being out of round or the tread being out laterally. After you confirm the problem, take it back to the dealership and have them spin it up on their machine and look at the assembly. You will never balance something that is out of spec. You had two different goobers that didn't bother to look for a problem, they just went through the motions. I have been exactly where you are at on a couple of occasions.


I agree. It's either an out of round/out of true tire or a bent rim. I also agree with your recommendation on how to diagnose it himself as well as the assessment of the "goobers" who implemented a fix without diagnosing the problem.

 

[CapriRacer]

Since you have a 2018, it ought to be under warranty. Go back to the dealer and tell them it still vibrates - and tell them which corner it is.

What ought to happen is that they exchange the tire for a new one - under warranty - with the exception if there is damage to the tire that is causing the vibration - like a flat spot!

 

[CT8]

In the morning does this mean when the tires are cold? Does the vibration go away after the tires warm up?

 

[DuckRyder]

I having a little difficulty reading the story on the work order, but it seems like they failed to actually follow through on the fix. Clearly they have a road force balancer and at least a modicum of knowledge how to use it... but it told them the tire/wheel assembly had 18LBS of road force, what did they do to remedy it? (Hint move it to the back isn't the remedy) That balancer will not only tell them if the wheel or the tire is the issue, (no guessing needed) but it will also tell them how to reduce the road force by turning the tire in relation to the wheel.

Take it back and tell them to finish the job the right way.

 

[Dohc98vteC]

I went to my guy at NTB, and he had me watch him put it on their balance machine. We noticed small bends on both rear wheels on the inside and the wobbling. He thought the tires appeared to be wearing fine as well. So I will take it back to the dealer and deal with the service manager this time.

 

[DuckRyder]

I wouldn't even mention NTB.

The dealer had given you all the information you need.

Cars vary in their sensitivity to road force but 18lbs is generally a lot on a small light car IME its likely you will feel anything over about 12... perhaps less...

The disconnect was when the tech went "OH it has 18lbs of road force I'll move it to the back" instead of "I'll put expensive and very capable balancer to the work and figure out why". They need to figure out why it has 18lbs and if it can be improved or if a new tire or wheel is needed. The balancer will do that for them all they need to do is make it work for them.

Also, does it call for 36 PSI on the certification label?

 

[DuckRyder]

Well, what did they have to say for themselves?

 

[Oil_Whisperer]

Your right rear tire is out of round. You do not have a balance problem. You have a radial force variation problem.
A tire that is out of round can be perfectly balanced and the vibration will still be there.
You need a new tire.