1990 Ls400 P/s Pump

[badboy50]

Hi guys, I'm new here and very impressed with this forum. Having problem with my 1990 ls400 p/s pump (assuming). Pump was making noises and steering was hard at idle and low speed but worked at high speed, so I checked and filled it with ATF fluid (reservoir was empty). Now the noise went away but left me with a dead steering (very hard) at any speed and circumstances.

Also now new problem arose: I need to jump the car everyday (battery seems to be ok), is it the alternator? I've been reading some posts here, and seen lot of the members having similar problems, so I'm guessing a leaky pump causing problem to alternator and hard steering feeling without the noise

this is right then I wanna rebuild a p/s pump. This and few other forums keep talking about the rebuild kit, I'm guessing a local Lexus dealership sells the (power steering rebuild kit), if not please some one tell me where to buy a kit.

So guys, anyone with similar problems or those who has the knowledge and expertise please keep this post going and try to simplify the p/s system functions and take care of the problems that are due to the faulty system.

Thank you and good luck to all of us.

[1990LS400]

I don't see much reason to start still another thread on this most common issue of a leaky PS pump causing the alternator to fail. Consider searching for past threads.

[badboy50]

I don't see much reason to start still another thread on this most common issue of a leaky PS pump causing the alternator to fail. Consider searching for past threads.

Thank you for the reply, a link or suggestion of a place where a rebuild kit can be purchased from would be appreciated.

Thanks.....

[wwest]

I don't see much reason to start still another thread on this most common issue of a leaky PS pump causing the alternator to fail. Consider searching for past threads.

Thank you for the reply, a link or suggestion of a place where a rebuild kit can be purchased from would be appreciated.

Thanks.....

why not at Lexus or even Toyota...??

But if your PS pump ran as dry as you say, and acted as you say after a fill-up, I would invest in a rebuilt.

The alternator failure on my '92 LS had NOTHING to do with the PS pump leaking. The alternator brushes had 50% left (100,000 plus) but the slip rings (SOFT copper??) themselves were worn right down to the metal shaft.