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      03-14-2016, 11:30 AM   #1
ejd
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Power steering pump? Steering Rack?

Hello,

I own a 2010 e90 (328 xi) with ~81k miles on it. Recently, I noticed a slight whirring noise when turning left, mainly when making sharp turns at low speeds, like turning into my driveway. Similar noise is heard when straightening the wheel. I am obviously not a car person,but I wanted to get some feedback before my trip to the stealership tomorrow.
Does this sound like a PS pump? Steering rack? Or am I way off base! Any
troubleshooting tips would be greatly appreciated. The noise gets louder when I crank the wheel all the way while at a stop, if that helps at all.
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      03-14-2016, 11:42 AM   #2
'02onthebrain
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I would check your power steering fluid level. Could be as simple as adding some fluid. Mine was groaning a bit last summer and was low. I flushed and filled it a couple times with a turkey baster and problem was solved. I have a slow leak in mine but nothing too bad.
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      03-14-2016, 11:55 AM   #3
shamu2789
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I had the same issue last week. is it difficult to turn at slow speed, like a parking lot? I added a bit of power steering fluid and it didnt fix the issue. The dealer discovered it was the lower steering shaft that needed replacement. They changed the part abd all good. Have someone diagnose it to be sure.
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      03-14-2016, 12:47 PM   #4
ejd
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The power steering reservoir was completely full.

The car turns fine, for the most part. Perhaps a tad sluggish, but then again,

I am kind of hyper-focused on this issue right now, as I tend to do...

For the most part the car operates and drives fine... with the exception

of this noise when I turn the wheels, clearly coming from the front of the

car. I am bringing it in for diagnostic work tomorrow, but I praying it is at

most the pump, and not as pricey as a steering rack!

Last edited by ejd; 03-14-2016 at 01:05 PM.
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      03-14-2016, 11:47 PM   #5
fazman
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Quote:
Originally Posted by ejd View Post
The power steering reservoir was completely full.

The car turns fine, for the most part. Perhaps a tad sluggish, but then again,

I am kind of hyper-focused on this issue right now, as I tend to do...

For the most part the car operates and drives fine... with the exception

of this noise when I turn the wheels, clearly coming from the front of the

car. I am bringing it in for diagnostic work tomorrow, but I praying it is at

most the pump, and not as pricey as a steering rack!
Does it sound like a wire brush like sound as you turn the wheel at a dead stop or at low speed turns?
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      04-15-2016, 09:30 AM   #6
cmitchel
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Any update on what was causing the noise you heard? Mine is doing something similar and it sounds like it is either fluid level, fluid filter, if not the power steering pump itself.
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