Ever since new theres been a slight vibration in the 58-63 speed range. Real minor and I was just gonna wait till I had it at dealers to get it looked at. So today I took her in for oil and filter and asked the about the vibration. They went ahead and rotated tyres (Front to back, back to front) and balanced the wheels/tyres andVibration is now much worse and occurs at a wider range of speeds.

Now anywhere from 54 to 67 mph. Its to the point of being uncorfortable now. And its not constant, I can set cruise at say , 62 and vibration varies from bad to slight, almost like tyres are setting up some kind of resonance.
Its going back to dealer next Friday but in the meantime, anyone have any ideas


Editied to remove Word formatting crud. Sorry about that

 

Have you re-checked the air pressure since leaving the dealer?

Does it do it in different gears?

 

Yep, air pressure is good

Speed dependent, does it it 5th and 6th

Sorta think its one of the wheel/tyres from the rear that got moved up front. Maybe that why it got worse ?????

 

could be a bent rim. did you hit a pothole lately.

 

Naw, like I said its been doing it since new, just got much worse after they did rotation and balance today.

 

Ask them to redo the balancing. It could be the balance or the tires.

Road force balancing is generally pretty good because it is a dynamic balance.

 

+1 for the balancing. It's probably off.