When I encounter a bump my steering wheel will shudder and reverberate violently, almost like there is no damping in the steering.

Is there any key areas I should check first?

I should also mention the car is a 1991 Toyota Celsior import with air suspension (that I suspect is going bad) and 55,000 miles on the clock.

There is also a hefty thudding and clanking coming from beneath the car.

[quote name='nesponge' post='691523' date='Sep 20 2009, 07:44 PM']When I encounter a bump my steering wheel will shudder and reverberate violently, almost like there is no damping in the steering.

Is there any key areas I should check first?

I should also mention the car is a 1991 Toyota Celsior import with air suspension (that I suspect is going bad) and 55,000 miles on the clock.

There is also a hefty thudding and clanking coming from beneath the car.[/quote]

my IS had a broken anti roll bar drop link and it made the steering feel light, and the car felt wobbly on sharp corners. These and the ball joints are the components that seem to wear out most often. I'd start by checking those. Hope that helps

does the LS have a steering damper like the Aristo has?