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E28 (1982 - 1988)

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Old 03-10-2008, 02:16 PM
smokey+ smokey+ is offline
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Location: portland
Join Date: May 2007
Posts: 28
Mein Auto: 1986 bmw 535i
power steering pump? regulator?

kinda a low whirring/wheeze noise. no screeching at all.

i have 86 535i. makes noise mostly when i'm at traffic lights. if i pump brakes or move steering wheel sound goes away and comes back. occasionally if i have brakes on and go around a corner power steering get hard (kinda gone feeling)

lately it's making a slight buzzing/beeping sound. i just did the thing where you pump the brakes/move the steering wheel to get air bubbles out of the power steering fluid. the whirring/wheeze is now more of a low level noise.

what fixed it for you? i don't know if it's hoses, brake bomb, power steering pump, or regulator/check valve? i have replaced the filter which was fine (no broken pieces, etc).

noise seems to be from connection where lower + upper hoses are on power steering pump. thanks.
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