Jump to content

  •  

Photo

Power Steering Leak!


  • Please log in to reply
30 replies to this topic

#1 Lexus ES300

Lexus ES300

    Club Member

  • Regular Member
  • PipPip
  • 31 posts
  • Model: 2002 Lexus ES300 & 1997 BMW 528i!
  • Location: Please Select

Posted 08 December 2007 - 11:16 PM

I just got this 95 LS400 but there is a small power steering leak, maybe 1 liter per month.
Power steering pump is wet.

Is there any trick to stop this leak?


Thanks!

Have something to contribute?

Sign in or register to start a topic...

 

#2 bigste

bigste

    Club Member

  • Regular Member
  • PipPip
  • 67 posts
  • Model: LS400 1993
  • Location: Please Select

Posted 09 December 2007 - 05:21 AM

I'm surprised it's still running. That kind of leak usually gooses your alternator so get it fixed a.s.a.p. you can find all you need to know at www.lexls.com and by searching this forum. It is a diy job for anyone with average know how.

#3 Lexus ES300

Lexus ES300

    Club Member

  • Regular Member
  • PipPip
  • 31 posts
  • Model: 2002 Lexus ES300 & 1997 BMW 528i!
  • Location: Please Select

Posted 09 December 2007 - 07:53 PM

Yes, it runs OK.

I found at LEXLS how to change gaskets and seals but not how to remove PS pump.

But anyways, I'll try tomorrow to remove it.

#4 steve2006

steve2006

    Dedicated Member

  • Regular Member
  • PipPipPipPip
  • 957 posts
  • First Name:Steve
  • Model: JDM Celsior
  • Year: 1994
  • Location: Other

Posted 10 December 2007 - 03:38 PM

Hi,
The most probably cause is the o ring seal on the reservoir this is available from Lexus at around $6.00 Part # 90080-30040
You need to remove the low pressure return pipe and 3 bolts holding it to the pump. ( you don't have to remove the pump itself)
Remove as much fluid as you can 1st using a rubber bulb type chicken baster then put plenty of rags under the pump to catch any remaining fluid.

Here are some pictures showing the bolt locations and the o ring.

http://i39.photobuck...exuspspump1.jpg


http://i39.photobuck...exuspspump2.jpg

Reassemble then top up the ps fluid and bleed the system.

Good luck

#5 VBdenny

VBdenny

    Guru Member

  • Regular Member
  • PipPipPipPipPip
  • 2,175 posts
  • First Name:Denny
  • Model: IS250
  • Year: 2014
  • Location: Virginia (VA)

Posted 10 December 2007 - 07:25 PM

my PS leaks sometimes and I was just reading up on this topic. Check this link

http://planetsoarer....eering pump.htm

#6 Lexus ES300

Lexus ES300

    Club Member

  • Regular Member
  • PipPip
  • 31 posts
  • Model: 2002 Lexus ES300 & 1997 BMW 528i!
  • Location: Please Select

Posted 10 December 2007 - 08:26 PM

Hi,
The most probably cause is the o ring seal on the reservoir this is available from Lexus at around $6.00 Part # 90080-30040
You need to remove the low pressure return pipe and 3 bolts holding it to the pump. ( you don't have to remove the pump itself)
Remove as much fluid as you can 1st using a rubber bulb type chicken baster then put plenty of rags under the pump to catch any remaining fluid.

Here are some pictures showing the bolt locations and the o ring.

http://i39.photobuck...exuspspump1.jpg


http://i39.photobuck...exuspspump2.jpg

Reassemble then top up the ps fluid and bleed the system.

Good luck



I just ordered power steering kit from Lexus (o rings, seals....) for 20 and some change.
They didn't have it in stock, they told me for tomorrow.
Anyways, I'm planning to change all o-rings.

I'll try to take some pictures to show you how I did it.


Thank you for help!

#7 majmike

majmike

    New Club Member

  • Members
  • Pip
  • 1 posts
  • Model: 94
  • Location: Please Select

Posted 10 December 2007 - 09:02 PM

Hi,
The most probably cause is the o ring seal on the reservoir this is available from Lexus at around $6.00 Part # 90080-30040
You need to remove the low pressure return pipe and 3 bolts holding it to the pump. ( you don't have to remove the pump itself)
Remove as much fluid as you can 1st using a rubber bulb type chicken baster then put plenty of rags under the pump to catch any remaining fluid.

Here are some pictures showing the bolt locations and the o ring.

http://i39.photobuck...exuspspump1.jpg


http://i39.photobuck...exuspspump2.jpg

Reassemble then top up the ps fluid and bleed the system.

Good luck



I just ordered power steering kit from Lexus (o rings, seals....) for 20 and some change.
They didn't have it in stock, they told me for tomorrow.
Anyways, I'm planning to change all o-rings.

I'll try to take some pictures to show you how I did it.


Thank you for help!



#8 Lexus ES300

Lexus ES300

    Club Member

  • Regular Member
  • PipPip
  • 31 posts
  • Model: 2002 Lexus ES300 & 1997 BMW 528i!
  • Location: Please Select

Posted 10 December 2007 - 09:02 PM

I saw this post and I think I found a problem.
Power steering fluid leak and white smoke at start up.
I think the Idle Control Valve creates the problem.
I'll put a bolt and that's it.

#9 Leadfoot

Leadfoot

    Advanced Club Member

  • Regular Member
  • PipPipPip
  • 221 posts
  • Model: 92 & 98 LS400's
  • Location: Please Select

Posted 11 December 2007 - 08:41 PM

I just got this 95 LS400 but there is a small power steering leak, maybe 1 liter per month.
Power steering pump is wet.

Is there any trick to stop this leak?


Thanks!


if the pump is wet then its leaking on the outside, so more likely to be the o-rings. The white smoke on start up usually has no visible leaks on the pumps. Is yours blowing smoke on start up?

#10 Lexus ES300

Lexus ES300

    Club Member

  • Regular Member
  • PipPip
  • 31 posts
  • Model: 2002 Lexus ES300 & 1997 BMW 528i!
  • Location: Please Select

Posted 11 December 2007 - 10:26 PM

I just got this 95 LS400 but there is a small power steering leak, maybe 1 liter per month.
Power steering pump is wet.

Is there any trick to stop this leak?


Thanks!


if the pump is wet then its leaking on the outside, so more likely to be the o-rings. The white smoke on start up usually has no visible leaks on the pumps. Is yours blowing smoke on start up?





I changed this o-ring:

http://i39.photobuck...exuspspump1.jpg


The old one was baaaad.






My Lex is blowing smoke on start up but I'll see tomorrow because my car now runs without Idle Control Valve.

#11 marlon08901

marlon08901

    Advanced Club Member

  • Regular Member
  • PipPipPip
  • 113 posts
  • Model: 1990 LS 400

Posted 18 December 2007 - 05:29 PM

I wish I would have read this post a month ago...when I found out my power steering fluid was leaking. I thought I could just add fluid and it would be ok...but 2 nights ago alternator went bad and I was stranded in the in highway 3 miles away from my house at 3 a.m. in the morning when my battery died. Now my car is at the mechanic and I'm hoping I'll have it back soon. I am getting the alternator replaced and the seal on the power steering changed.

#12 Lexus ES300

Lexus ES300

    Club Member

  • Regular Member
  • PipPip
  • 31 posts
  • Model: 2002 Lexus ES300 & 1997 BMW 528i!
  • Location: Please Select

Posted 18 December 2007 - 09:44 PM

I have new power steering pump set (o rings, seals....) and I not need them.

#13 french 1990 lexus ls400

french 1990 lexus ls400

    Club Member

  • Regular Member
  • PipPip
  • 35 posts
  • Model: lexus ls 400 1990
  • Location: Please Select

Posted 20 December 2007 - 03:12 PM

hi from france
lexus ls 400 1990.
i change my power steering liquid every month. Because every month there is a noise like air in the system. It's tired to do this every month. I hope there is something else whose wrong.
thanks all guys for your answers and questions on this forum.
We love our cars.
regards
Denis

#14 python

python

    Advanced Club Member

  • Regular Member
  • PipPipPip
  • 484 posts
  • Model: 92 Lexus Ls 400
  • Location: Please Select

Posted 20 December 2007 - 06:37 PM

hi from france
lexus ls 400 1990.
i change my power steering liquid every month. Because every month there is a noise like air in the system. It's tired to do this every month. I hope there is something else whose wrong.
thanks all guys for your answers and questions on this forum.
We love our cars.
regards
Denis

i have answers to all these powersteering issues, first off if u r getting smoke at start up it is the valve on your pump, it has 2 vacuum lines going to it and one goes to the intake manifold
next ......if u replace one component of the power steering you need to replace hoses and the rack, contaminated fluid will kill one and cause the others to fail, if u plan on keeping your car fix it and fix it right do not do this job half assed, other wise u will be replacing components later on 2 or 3 times until u have them all fixed anyways, i have fixed just about everything on my 92 so any questions any of u have u can email me, i work for NAPA auto parts and used to be a mechanic, i have extensive knowledge and would like to help on any situation i can

#15 Sixdown

Sixdown

    New Club Member

  • Regular Member
  • Pip
  • 6 posts
  • Model: 1990 Lexus LS400
  • Location: Please Select

Posted 21 December 2007 - 06:10 PM

I've been having problems with my 1990 LS400 Power Steering too. The PS has air bubbles in the fluid, which points me to believing that there's a leak somewhere, yet I still cannot find it. Would this O-ring be the source? There is nothing on the alternator.

Have something to contribute?

Sign in or register to start a topic...


Not what you're looking for?

Register now, we have a huge community of enthusiasts to answer any questions you might have