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

Power Steering Problems

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Old Feb 19, 2013 | 12:15 PM
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Default Power Steering Problems

Hello
I bought a 92 LS 400 with what i was told needing a power steering pump. Well i put it on and it made no difference its still super hard to steer and the new pump whines like the old one ? I flushed the new one and have been trying to get what i think is air out but to no avail . I even cleaned the screen off the sillinoid it was full but still made no difference . I have no leaks anywhere . any Ideas??

Thanks
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Old Feb 19, 2013 | 01:48 PM
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It can take some time to get the air out of the system, are you doing it with the front wheels off the ground or at least stood on glossy magazines?
Is the replacement PS pump new.used.recon?
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Old Feb 19, 2013 | 02:07 PM
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Originally Posted by steve2006
It can take some time to get the air out of the system, are you doing it with the front wheels off the ground or at least stood on glossy magazines?
Is the replacement PS pump new.used.recon?
It is a recon but its the second one I thought I got a bad one so I changed it again
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Old Feb 19, 2013 | 02:48 PM
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hmm im leaning towards the steering rack if you replaced your pump already. i am not sure how you can tell it's bad however.
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Old Feb 19, 2013 | 02:52 PM
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All I have been told is it would be leaking if the rack is bad but I have no clue. I can't think what else it might be
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Old Feb 19, 2013 | 08:28 PM
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Default rack and pinon

i had the same problem when i first got my car. i had to change the pump and the rack and pinon....
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Old Feb 20, 2013 | 07:28 AM
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I kindda have the same problem with my 99LS , it gets hard at times and there is no leak , but I noticed the fluid a bit burned ... Its a lexus thing with the steering wheel stiffness , the only way to make sure everything is fixed is to change the Rack&Pinion and the pump ...
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Old Feb 20, 2013 | 07:47 AM
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Well you guys sure are not telling me what I want to hear lol have any of you ever changed the rack out without taking it into the shop if so how hard was it / time it took ? Thanks for the feed back
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Old Feb 20, 2013 | 03:10 PM
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recently did it on my LS. Annoying as hell but not too complicated. Have fun benchpressing the new rack into place.
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Old Feb 20, 2013 | 11:03 PM
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I noticed you live in CO? If so, you should PM me, I might be able to give you a hand
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Old Feb 21, 2013 | 07:16 AM
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I live on the western slope in meeker but if you know how to do it I will pick your brain if you don't mind
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Old Feb 21, 2013 | 11:19 AM
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What does that entail ?
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Old Feb 23, 2013 | 08:41 AM
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LS400's don't have steering dampers, so don't worry about that.

And unfortunately I am in the Denver area, so I wont be able to help you out in person.

I will be pulling my rack in order to do the engine mounts pretty shortly here, i will let you know how it goes.
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