moses0324

2008 IS250 just put brand new michelin pilots on balanced and aligned. I keep having vibration at highway speeds. Can't remember if I had the vibration before the new tires. Brakes are also new and don't get the vibration when braking.

Vibration in seat and steering wheel. Had dealership check for bent rims they say they are good. I do get a very quiet thump thump thump noise when I get the vibration but it's very quiet. Wondering if I got a bad tire or a flat spot on tire?

Im out of ideas. U joint? Suspension?

Usually happens at 75mph plus...

XSV

iTrader: (1)

I'm thinking the wheels weren't balanced correctly or the alignment wasn't done correctly.

moses0324

Forgot to mention they balanced wheels twice...they still could have messed them up I suppose.

XSV

iTrader: (1)

Well, maybe it's a faulty wheel bearing?

Gville350

iTrader: (10)

So you have that vibration in the steering wheel only at highway speed? If the vibration is not in the brake pedal, then it's probably still the wheels/tires. Possibly a factory defect in one of the tires?