guys,

I heard some type of suspension noise (on my 1000-mile LS430) when I was going up in a parking ramp (quite steep slope). This noise is coming from the front left area and occurs when the car starts to level off (transition right after the steep slope). I would describe it as a noise similar to when you bounce off a spring bed.

any idea??

tia.

PS: the dealer placed chassy-ear & multiple sensors but couldn't find the root cause of the noise (they can hear it too).

 

Grease the struts down with some dry lube or WD-40. Just spray liberally, let sit for a few minutes before starting the car.

 

Have them lube the stabilizer bushings. If the problem goes away for good- make them replace them. That was the problem. Had a similar problem on my previous 99 LS.