Neural0

I have an '06 GS300, noticed the exact same vibration through the steering wheel and shaking when driving at 25-30mph. I'll have to look into the rims if that really made a difference...

Neural0

Oh and regarding Seafoam... It made a negative difference in my ES300 when I originally got that. It knocked enough of the loose carbon off that it ended up clogging the rest of my system. I never was able to drive more than a day or so after that without the Check Engine light coming on and throwing generic exhaust codes all over the place. DON'T recommend Seafoam.

IXI187IXI

iTrader: (3)

ah the awd vibrations....

its typical for all the awd versions even at stock height. its all subjective so its hard to judge. if you lower your car you will notice more and more. theres plenty of threads of this in the suspension forum.

leisinjp

Yeah man for sure. It is pretty much gone now. I still want to get an alignment done and get a tire balancing from a road force machine but I would def try looking into your rims first.

leisinjp

Thats no good. Was there anyway to then unclog the system?

leisinjp

Before I bought the car I searched around the forum and saw that when you lower the car it did get worse. But I am never going to lower the car so I didn't think I would have a problem. I was wrong. I'm going to try with replacing the engnie and tranny mounts and things like that to see if they help.

Neural0

Not really anything I could do. I couldn't track down where the clog was and the only piece of advice I got was to take it into the dealer to have them try to track down in the vacuum system where the problem was. They couldn't guarantee they would find it and it was $1500... Not worth it.

leisinjp

Good Lord! That's expensive for an unknown.