ok, so since i've bought this car, had a minor problem. At about 70mph(which Is the speed I drive 90% of the time because I take my turnpike everywhere)the steering wheel shakes a little and when I look over at my passenger seat it shaking too. So at first they told me it was the tires needing to be balanced, did that, problem not fixed. Then they said I had bad tires. Since then I have 4 brand new tires, still problem exists. Then had the brakes checked(even though I put 4 new pads on since I bought it)and they said my rotors are warped and that was the problem. Just got done putting new rotors and pads and it's still doing it. Now it did fix the problem though when I braked from coming on the off ramp and the steering wheel would shake hard. it doesn't shake at all when I brake, but still vibrates way too much for my taste on the steering wheel when I rest my hand in the center and the passenger seat is vibrating pretty bad. Any ideas how to troubleshoot this or what this could be guys?

thanks in advance,
Scott

 

how may miles on the car and what was done on suspension?
most gs have slight vibration at around 65mph

 

Join the club I've learned to just live with it.

 

just turned over 100k.
Seriously? Why is that?

 

i belive nobody knows why and there is no know solution for that, so if you do have vibration only between 60-70 than probably you will have to live with that
if its excesive or at any other speed than some bushings in front suspension or steering, motor mounts or struts

 

has the same shop done all your balances? Using the correct weights and in the correct location? Do you have the correct lug nuts?

 

Vibration free for YEARS!!

 

Have the balancing checked again. I have been going to my buddies shop for tires, mounting and balancing for the past couple years and my car had a vibration. After a bad alignment, I went somewhere else and also had the wheels rebalanced and that was my problem. I'm guessing his wheel balancing machine was not right, but my car had been vibration free for the past 6 months.

 

most gs have slight vibration at around 65mph

 

https://www.clublexus.com/forums/gs-...on-thread.html

 

I have no vibes at all at any MPH range

 

Mine are pretty much gone as well, new tires,alignment, and new sway bar links, brakes,rotors.... Going 80 feels like 45, no shakes...

 

mine was a balancing issue.. i still get a very faint shimmy at 65mph.. but goes away when i pass that speed...

 

search for steering rack preload adjustment. it fixed mine

 

funny OP u say all the normal things fixed but i dont see one suspension related part addressed

search vibration and you'll come across a million threads most pertaining to the castor arm and its bushings