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Constant Power Steering Pump whine

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Old Jun 14, 2022 | 01:15 PM
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Tomkun
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From: San Antonio
I had the same issue and only changed the bearings on the idler pulley, now my whine is gone, the part number is NBH 38005 from Napa.


Originally Posted by CaptainSquirts
Im 96% sure I figured the problem out, it's the idler pulley on the serpentine. My stethoscope has an extension where its basically like the screw driver method putting it against stuff. Putting it against the idler pulley(since the center part doesn't spin) and it amplified the same exact sound to the max. Surely this is it, surely..

Noting it's a Gates Idler pulley. Replaced that when I did my timing belt about 3 years ago. It has around 10k miles on it. Guess I'll buy oem.
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Old Jun 15, 2022 | 03:33 PM
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Didn't think about changing just the bearing, I'll have to keep that in mind for next time. I just bought a new oem idler pulley, the noise is gone now.
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Old Feb 6, 2023 | 06:32 PM
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Originally Posted by CaptainSquirts
. Got a new remanufactured pump and installed it, still same exact noise.
which reman did you get? still on the car working ok?
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Old Feb 7, 2023 | 10:08 PM
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It was from RockAuto. I swapped back to oem since the one from rockauto started creating a lot of metal shavings after one spin out from autocross.
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Old Feb 7, 2023 | 11:41 PM
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Originally Posted by CaptainSquirts
It was from RockAuto. I swapped back to oem since the one from rockauto started creating a lot of metal shavings after one spin out from autocross.
Thanks
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