2011 MDX steering whine

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12-10-2018, 11:33 AM

daftfunk

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2011 MDX steering whine

Have the dreaded steering whine and will try to change the O rings and PS fluid first before I reach out to the dealer.

Does anyone know the O ring part numbers?

I believe the lower ring is 91345-RDA-A01 and is orange. Not sure about O ring part number on the high pressure hose above it.

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12-10-2018, 12:04 PM

thoiboi

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https://www.oemacuraparts.com/v-2012...s-pump-bracket

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12-11-2018, 07:55 AM

daftfunk

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Quote:

Originally Posted by thoiboi

https://www.oemacuraparts.com/v-2012...s-pump-bracket

There 4 o-rings in the expanded diagram.... Do you know which one is the high pressure one?

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12-11-2018, 09:41 PM

daftfunk

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Found on the ps line diagram.

Acura Part No.: 91370-TA0-000

O-Ring (14.4X1.9)

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01-05-2019, 07:24 AM

DagMDX2011

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Try replacing fluid first. Mine whined after exiting highway, or when very warm. Used 4 bottles Honda spec fluid - suck/fill with turning lock to lock between. Whining gone.