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Shudder after PS rack change 

 

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 Post subject: Shudder after PS rack change
Posted: Mon Apr 25, 2011 8:06 pm 
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Just changed power steering racks for my EB. Feels and handles better, but it's got shudder now when I try to turn the wheel idling or when i'm taking off to turn a corner, getting out of parking, etc. Happens more to the left than the right but still shuttering. Didn't do this with the old rack.

It doesn't shutter when i'm driving and turning the wheel though, nor does it shudder when I brake.

Old fluid was drained out, put new fluid in, turned the wheel left and right to get the air out... maybe there's still air trapped in it? Could it be the switch?

Cheers.
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 Post subject: Re: Shudder after PS rack change
Posted: Mon Apr 25, 2011 8:11 pm 
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air in the system. is the level ok?

 

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 Post subject: Re: Shudder after PS rack change
Posted: Mon Apr 25, 2011 8:29 pm 
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Checked the fluid, it was almost full. Took the cap off, started the car, turned the wheel multiple times, didn't seem to shudder as much this time, although it was only on idle I didn't wanna drive it around again. Could be just air in the end but how long does it take to bleed it out properly or if I was driving around?
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 Post subject: Re: Shudder after PS rack change
Posted: Mon Apr 25, 2011 9:24 pm 
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Tech90 wrote:
Checked the fluid, it was almost full. Took the cap off, started the car, turned the wheel multiple times, didn't seem to shudder as much this time, although it was only on idle I didn't wanna drive it around again. Could be just air in the end but how long does it take to bleed it out properly or if I was driving around?


Mine took about a week. I think if you do circles lock-to-lock it might push the air out quicker. So find yourself a parking lot and do figure 8s.

 

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 Post subject: Re: Shudder after PS rack change
Posted: Tue Apr 26, 2011 8:55 am 
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I have heard it recommended to do half a dozen tight figure eights (not quite on the stops) to purge the air.

 

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 Post subject: Re: Shudder after PS rack change
Posted: Tue Apr 26, 2011 1:36 pm 
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I haven't done any figure 8's yet but it's getting better now as I've barely had a problem with it this morning. I'll do some soon and then that should be it.

Cheers guys.
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