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Hi I just was wondering if anyone else has had a noisy power steeing pump? I did not have any problems other than the noise. I took it in a had a few things done and it came back with a TSB (I can get the number if anyone wants) which replaced the fluid ~8.8L?? Any idea what the issue is? I searched and did not find anything.
 

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Power steering noise is common and has been around for over a year. If you do some searches you will find threads. Typically the TSB fixes the issue and there does not seem to be any long term problems.
 

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My acadia whines, only at night ive noticed, or when the clutch for the a/c turns on. my dealer said its normal, I told them that i was a mechanic and i know the whine was coming from the powersteering pump. (which the level never gets checked at the reg service at the dealer btw) and he said hed let me know what the service manager says in a couple days, they seem to know me well over there, still love my truck though and GM hands down.
 
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