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Noise when turning steering wheel

Power Steering Pump Noise when turning

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4 replies to this topic

#1 osmonxp

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Posted 21 August 2017 - 06:01 PM

Hello,

 

I have yet another question.  This issue stared today and don't know how to tackle it.  I have a 2012 Subaru Legacy 2.5l Premium that I purchased used.  Every time I move the steering wheel either left or right it make a horrible noise and I'm afraid it may be something serious.  I replaced the fluid and bled the system turning the steering wheel end-to-end and also used a vacuum pump to remove any remaining air but that did not help.  Any advice you can provide will be greatly appreciated.  Please watch the video to have a better idea of what I'm talking about.

 

 

 

 



#2 john in KY

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Posted 21 August 2017 - 06:03 PM

Probably just need to tighten the belt. 

 

If the problem is a slipping belt, replace it.


Edited by john in KY, 21 August 2017 - 06:04 PM.


#3 osmonxp

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Posted 21 August 2017 - 09:59 PM

Probably just need to tighten the belt. 

 

If the problem is a slipping belt, replace it.

 

How do you know if the belt is slipping?  I replaced the tensioner and idler pulley with aftermarket parts and don't know if that has anything to do with the noise but the slipping belt did cross my mind I just don't know how to determine if that's the issue.  Thank you.



#4 john in KY

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Posted 21 August 2017 - 10:18 PM

Just increase the tension on the belt until the noise stops.  Once determined the problem is a slipping belt, replace it because now it has become glazed. 



#5 monkeyposeur

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Posted 21 August 2017 - 11:36 PM

I didn't see a  link to a video in your post so I don't know what your sound is like.

 

If its a squealing sound then it's the belt. If it's a lower pitched grinding noise then it is probably air getting into the system from a bad o ring connection in one of the lines, a bad seal between the reservoir and the pump, or a leak from one of the rubber hoses that joins the sections of hard lines. The lower pressure line has a clamp fitting which can go bad but be fixed with a good hose clamp.

 

Are you getting any leaks anywhere? Are the boots of the steering rack torn?

 

Power steering pumps can go bad but that is pretty rare. I just dissassembled one and there isn't too much that can go wrong on them mechanically unless they are run on a low amount of fluid.

 

Have you tried going lock to lock with the power steering reservoir cap of to further bleed air out of the system?

 

I wouldn't get too worried. Even if it is a blown steering rack it's not too bad of a job to replace it.


Edited by monkeyposeur, 21 August 2017 - 11:41 PM.






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