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Noisy power steering

zcacogp

New member
Chaps,

Another ailment for my poor, beleagured S2; not being driven is playing havoc with the old girl. When first started, the power steering is quite noisy, making a whirring or grinding noise. It is related to the steering rather than the pump; it makes the noise when the steering wheel is being turned, and quietens down after 5 minutes or so.

I haven't checked fluid levels but have no reason to suspect they are down - I flushed and refilled the system a couple of years ago and have seen no leaks since then.

Any suggestions chaps? (Preferably something that may be nice and cheap ... )


Oli.
 
Yeah. I see the logic. If so, why does it quieten down after a while? (I guess it is noisier when turning the steering as this is when you are working the pump hardest.) Oli.
 
Dont know why but I would certainly check the level. My co van had a similar type of problem - no obvious fluid loss but it went somewhere, only noticed when it became noisy, top up quietened it considerably. Noise can be due to air getting imto the pump
 
ORIGINAL: zcacogp Yeah. I see the logic. If so, why does it quieten down after a while?
I imagine because the fluid is warming up, and the seals are warming up and becoming more flexible and sealing better..
(I guess it is noisier when turning the steering as this is when you are working the pump hardest.)
I guess so too: that is when the most pressure is being exerted.
 
Random link alert: [link=http://www.isomedia.com/homes/benzspg/powrster.htm]http://www.isomedia.com/homes/benzspg/powrster.htm[/link] And a quote from the above link
A growling or gravelly noise are signs of air entrapment or pump failure
Maybe the system just needs a bleed?
 
Lazy Bum here finally got off his >ahem< lazy bum and checked the fluid level in the reservoir today. It was a LONG way down. More than far enough to explain these symptoms. I topped it up, and expect that this will have cured the symptoms, but I wonder where all the fluid has gone too. Perhaps it takes after Mike's company van ... >SlightlyWorried< Oli.
 
Look in the gaiters over the rack ends! A colleagues van put it one side, he kept topping up and wondering, eventually a gaiter popped and all became clear! The 2.7 had a low pressure pipe go porous, in several places! Took me ages to work that out. New pipe fixed it, but not before fluid totally wrecked ARB inner bush. Never found my vans leak!
 
The seals on my rack were leaking into the gaiters, and then on out. Early on it was fine to just top it up, but it got worse so rather than have an MoT fail on it I forked out for a reconditioned rack. About £300 but don't even ask the price of a proper Porsche one!
 
Oli mine used to make a horrible noise and worse so in winter when the fluid was colder until it warmed up. I bought a pump recon kit for around £30 and did the pump. It has been quiet as a mouse and silky smooth since [:)]
 

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