hkeller

Our 2000 LX 470 is my wife's daily driver. God only knows what she does to this thing. I took it out last week and the ride was awful. It literally felt like I was riding in a vehicle with no shocks. At each bump in the road, it would bounce two or three times before settling down. When I changed the comfort setting from comfort to super comfort, he LX went down to its lowest height setting and the AHC "OFF" light flashed. (The manual says that if the system has a fault the vehicle should return to the normal height setting and the "OFF" light will flash. However, I could not get the LX to raise to the normal setting.)

When I opened the hood, the fluid in the suspension tank was emulsified, like it had been through a high-speed blender. After sitting for a day, the fluid cleared a bit and the system began working as normal (I did disconnenct the battery).

I have ordered new fluid and plan to bleed the system and replace the fluid as per the service manual. However, that is just treating the system, not curing the desease. I would like some input, if you'all have any, as to what may have casued this. The LX rides as good as new now, but it was mighty scarry at the time this happened. I have heard too many horror stories about the costs to repair these things.

Thanks for any input!

ldp01

Without digging into my factory manuals, I'd ensure that the fluid level is correct. I wonder if you may have a small leak allowing the fluid level to decrease and consequently replaced with air?

Try checking the fluid level in the reservoir.

Just a thought.

ldp

lexusls430

I had that problem also everytime i hit a bump the car would bounce they replaced the suspension sensor on the front right tire. Cost about 1200 which is alot for a sensor but i got it done for free. Check and see if the front of the car is higher than the rear if it is then its one of the sensors.