I am currently in Albany NY and the roads here are terrible, full of potholes and cracked roads.

The other day, the weather was so nice i opened the windows and took a drive around in the suburbs. I heard clunking/clattering noises as i went over bumps or lumps in the road.

The noise as close as i can get in words is Kalunkidunkidunk, It sounds like its in the front right. I rode in passenger side and the drivers side.

I have air suspension and a 1990 ls400.

It sounded similar to when my friend put new shocks/suspension on his suzuki but the springs were put in upside down.

I am guessings its a suspension issue, but since it is air, im not 100% sure what it might be.

 

I'm wondering if you ever figured this out?

 

I had the same noise about a week ago and i figured mine out. It wound up being the battery hold down. It was loose and i was having problems tightening it so i took it out and the noise was gone. hope this helps

 

Defiantly sounds a like worn bushing. Strut rod would be my first guess. Second would be control arm. A professional inspection would be in order to determine what needs replacing. I also had a clunk on rough roads and it was the strut rod bushing.

 

3 year old thread bump.

This thread is the usual suspect.
https://www.clublexus.com/forums/ls4...er-thread.html