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Old 04-30-2014, 10:51 AM   #1
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Default 2007 Grand Prix Power Steering

I have noticed lately that my power steering is very load with a whining noise. The fluid level is normal.

The car has 121,000 miles and hasn't had any mechanical issues.

Anyone have any suggestions?

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Old 04-30-2014, 12:34 PM   #2
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First off, you are sure it'* the PS pump, and possibly not the alternator, idler pulley, etc.?

Fluid level ok, but are there air bubbles in it?
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Old 04-30-2014, 02:25 PM   #3
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Those pesky 3800 power steering pumps do have a bad habit of whining like a supercharger when they are failing.
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Old 04-30-2014, 03:36 PM   #4
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As the power steering fluid works hard (gets dirty) it can sometimes quieten down a bit if you flush the system or even try suctioning out the power steering reservoir and add new GM fluid.
Worth a try....
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Old 04-30-2014, 04:19 PM   #5
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We haven't had it looked at yet; however we have been told by many that it is the PS pump. The fluid has never been changed; although we did add some a couple years back.
The sound does remind me of a super charger....however it is annoying. I will check into flushing and replacing the fluid...hopefully that will help.
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