Possible power steering pump gone bad? what are the symptoms if it does? - Lexus IS Forum
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post #1 of 10 (permalink) Old 09-06-2009, 09:40 AM Thread Starter
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Possible power steering pump gone bad? what are the symptoms if it does?

hello yall...Yesterday my 01 is300 started making this loud squeeling noise very similar to the noise a car makes without power steering fluid...what puzzles me is that there are no leaks...and the steering feels the same as to when i bought it a couple months ago. when i turn the wheel (on park) the squeeling gets a bit louder. that is what gave me the idea that it may be related to the power steering pump. but can it be that the belt may need some tightening? or change the pulley? or in other words..change the pump and add the filter these cars fail to have for some reason. Can anyone help me out? advice? I would appreciate it thank you

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post #2 of 10 (permalink) Old 09-08-2009, 12:48 PM
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did you figure this out? I have same symptoms basiocally on my 00 GS300 which appears to use same PS pump. On mine at idle the noise will decrease when the wheels are turned from side to side. Dealer tech said it was very like the pulley shaft bearings going and just replace the PS pump. They want $900-1000. My independent will do it with a remanufactured OEM for 374 or about 670 with a new OEM. I am debating about whether to go new or reman.
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post #3 of 10 (permalink) Old 05-03-2010, 09:08 PM
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I would like to know as well. Would reman be as good as new? OEM or aftermarket? DIY or get a mechanic to do it?

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post #4 of 10 (permalink) Old 05-04-2010, 11:39 AM
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Check your belt first... If not then I would hit up either hit junkyards or go with a remanufactured one. A lot of remanufactured parts have the same warranty if not better than OEM
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post #5 of 10 (permalink) Old 05-06-2010, 08:51 AM
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my car also makes noise too, I am going to remove the ps belt see if the noise go away
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post #6 of 10 (permalink) Old 05-29-2010, 12:49 PM
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my car is making those noises too. Have anyone figure out what it is yet??

01 - Black Onyx

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post #7 of 10 (permalink) Old 06-01-2010, 09:44 PM
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the rpms on my car drop alot when i move the wheel is that normal?
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post #8 of 10 (permalink) Old 06-02-2010, 09:11 AM
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Try tightening your belt. Or even replacing it if its old and cracked.

If that doesnt work, have you ever changed the fluid? If you havent, I would try that as a first step since its the cheapest thing to do.

If that doesnt cure it, yep, I'd replace the pump.

2001 IS300 - SOLD
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post #9 of 10 (permalink) Old 06-02-2010, 09:21 AM
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Looks like it is related to the belt. Have it checked or replace it yourself.
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post #10 of 10 (permalink) Old 06-02-2010, 09:47 AM
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Or the tensioner may need replaced if belt is too loose. If you can turn your drive belt 90 degrees or more using just your index finger and thumb....tensioner is shot. This and belt condition could also play a factor.

'02 IS300 MSM LSD
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