Rear end vibration V8 Genesis

[jodymcgl]

I dropped my 2009 w/ tech off at the dealership this morning and they cannot find my issue. It is difficult to explain and fairly subtle but what happens is that when I take off with medium acceleration I feel a vibration through the arm rest at 22 mph. It is worse when I am turning. When I press it hard or when I take off easy It does not happen. Also it does not happen every time so it is hard to troubleshoot. I have 18k miles but it has done it almost from day one. Tires are in good shape and recently road force balanced. I searched here and on the net but cannot find anything. Any suggestions would be welcomed.

 

[JDC]

Well, I have a very low frequency vibration, normally which starts sometime in the low 40's, (when I first bought the car two years ago), and would 'go away' by the time I hit the 50's. It was a low frequency based upon the 'sound' of the vibration, and it was a rapid vibration as well. As time has gone by, I am able to feel the fibration at higher speeds, and it continues to the low 60's at this point.

Initially I though it was due to cold tires from the OEM stock. I replaced the tires yesterday with Michellins, and it is still there. The Michellins, however, are a nice, more quiet change to the road noise from the previous, OEM stock.

 

[Mark_888]

Well, I have a very low frequency vibration, normally which starts sometime in the low 40's, (when I first bought the car two years ago), and would 'go away' by the time I hit the 50's. It was a low frequency based upon the 'sound' of the vibration, and it was a rapid vibration as well. As time has gone by, I am able to feel the fibration at higher speeds, and it continues to the low 60's at this point.

Initially I though it was due to cold tires from the OEM stock. I replaced the tires yesterday with Michellins, and it is still there. The Michellins, however, are a nice, more quiet change to the road noise from the previous, OEM stock.

There is a TSB regarding rear hub noise, but not sure whether it applies to your build date. I posted details of this in another thread if you want to look at it, or scan through the TSB's if you have access to them.

 

[JDC]

Mark, thank you. I will search it out before I head over to Hyundai.

 

[scottdk]

Mark, thank you. I will search it out before I head over to Hyundai.

I would believe Marks suggestion is probably the cause. Check the TSB's, and if you can not find one, I can post a pic of the hard copy I received in the mail a few years ago. I have no issues with mine, so I have not wanted the TSB work completed.

2nd, if the TSB isn't the issue, what you have described sounds similar to a bad wheel bearing.....might be something to have the dealer look into, although temp should have nothing to do with a bad wheel bearing. Is this vibration felt on your brake pedal, even if you place your foot on the brake pedal without applying the brakes?