LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Air Suspension?

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Old 12-21-09, 03:11 AM
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Japalaska
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Default Air Suspension?

My 1990 ls400's air suspension is acting a little wacky. First, the rear end lost all the air and the passenger front shock was over inflated. After about one day, I disconnected and reconnected the battery cable, which resulted in the rear end inflating. I then decided to turn the air system off. All the shock are holding air, but the passenger side of the vehicle is about 8' higher than the drivers side, which causes a rough and uncomfortable ride. I've been thinking about putting a conversion kit in, but if the air shocks don't leak, then I want to run those into the ground before buying a conversion kit.
Is there any way to bleed some air out of the overinflated shocks?
Any suggestions and info will be greatly appreciated.
Thanks
Old 12-21-09, 08:31 AM
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edtbjon
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Alaska?! Of course it could be as simple as an ice plug somewhere in the system, so you may fix it altogether by simply putting the car in a warm garage over night. The air compressor should have some kind of air drying device, but even though I run with a/s myself, I don't know where to find it (at least not on a -90).

//Björn
Old 12-21-09, 04:42 PM
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Japalaska
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Thanks for you help, but I think there's more wrong. The outside temp has changed to above freezing, so I turned the a/s on and the back end lost all its air again. The front still has air, but the passenger side shock is seized. I don't know if it's seized because it is overinflated. I plan on leaving my car in a friends garage overnight. Hopefully that will fix it.
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