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Old 01-23-2009, 07:17 AM   #1 (permalink)
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Power Steering Problem?

I have an 01 impala ls. and when it's cold or when I make any sort of sharp turn going above 10 mph. my car starts 2 make a loud whinning sound. if I cut the wheel to either direction the sound gets louder. I noticed also that if I sin my tires and traction control comes on the sound will appear. it goes away after shuttin down the car, but returns all the time during turns or cold weather. if anyone has any ideas of what it could be, please help me out

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Old 01-23-2009, 07:49 AM   #2 (permalink)
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Check your fluid first,report findings.
When you spin your tires and traction control comes on,that is your ABS motor you hear i'm betting and not the power steering.

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Old 01-23-2009, 09:50 AM   #3 (permalink)
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fluid is fine. the noise comes w/ or w/o trac. control on. sometimes just from cold weather, a simple turn will start the whinning noise. it's really loud and obnoxious.. I figure it's something 2 do w/ power steering because it only happens when turning and the noise settles if I keep going straight

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Old 01-23-2009, 09:51 AM   #4 (permalink)
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re:re:

fluid is fine. the noise comes w/ or w/o trac. control on. sometimes just from cold weather, a simple turn will start the whinning noise. it's really loud and obnoxious.. I figure it's something 2 do w/ power steering because it only happens when turning and the noise settles if I keep going straight

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Old 01-23-2009, 01:02 PM   #5 (permalink)
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You are either getting air into the system from a slight leak,the pump is bad or low on fluid more than likely.

Is the fluid nice and red,or is it dark and burnt smelling?
If it's dark and burnt then it's not lubricating the pump well enough probably.
That can cause the whine,and also cause the pump to go out.
Looking for signs of fluid weep around the pulley shaft,and on the rack itself.
Even if it's not wet with fluid,if fluid can get out then air can get in.

First thing I would try is changing the fluid if it's burnt/dirty and pulling a vacuum on it to pull out any air.
If that doesn't make it stop then more than likely your pump is failing.
Check for a leak in the lines and rack before you replace though-or you'll have the same issue in short time.

I've actually got the same issue on my wifes car-I've been neglecting messing with it though. I did suck all the fluid out and put fresh in but it came back pretty quick so I'm going to check for a leak and probably change the pump out under ext. warranty.

Not sure how much they cost,pump generally doesn't cost very much though.

Maybe capricewiz could pop up on this one since he's a GM technician. I think there was a TSB about the steering on these,don't remember it being related to the pump though. I think it was related to the shaft.

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Old 01-23-2009, 04:47 PM   #6 (permalink)
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If its due to cold weather, go to your GM dealer and get yourself a bottle of Cold Climate power steering fluid. Then suck it out of your resevoir and put that stuff in. It works well.

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Old 01-23-2009, 06:59 PM   #7 (permalink)
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Never knew they had an issue in cold weather,is it from the fluid thickening or ?

My issue isn't cold weather,i'm sure of that.

What do they consider cold climate? When I think of cold climate i'm thinking under 30* for more than a couple months.

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Old 01-23-2009, 08:00 PM   #8 (permalink)
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We had a lot of issues with the p/s pumps whining just from cold starts even in the summer. So we would take the old fluid out and put the cold climate p/s fluid in and it would solve the issue. Its definitely a different viscosity than normal p/s fluid. Crap its even a totally different color. It got to the point at the dealer we stopped stocking normal p/s fluid and just stocked the cold climate stuff.

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Old 01-23-2009, 08:22 PM   #9 (permalink)
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hmmm....
I'll switch mine over when I finally get a chance to look at it then.

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Old 02-04-2009, 04:38 PM   #10 (permalink)
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i've had the same problem it is probably the cold. mine does that when it gets in the negatives because the fluid thickens up a bit.

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