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Getting jitter in the steering wheel after flushing the power steering fluid Topic is solved

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
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Pluckmaster
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Pluckmaster

Getting jitter in the steering wheel after flushing the power steering fluid

Post by Pluckmaster » Mon Nov 04, 2019 4:18 pm

Hey. new guy here. So I'm gonna run down every thing I did incase I'm missing something important. So I knew my 2001 Volvo xc70 had old black fluid in the the power steering tank but it had no problems but I decided to flush it with CHF 11S.
I took off the hose and pumped out all the fluid by turning the wheel lock to lock with the car off. I then poured in the new fluid then bleeded the system by turning the wheel lock to lock with the car off then did the same with the car on.
But now when I drive the car and turn left or right I feel a jitter from the wheel.
When I first flushed it the jitter was very noticeable but after letting the car sit so the air bubbles can come out the jitter seems to be less noticeable.
I don't know it if it's something as simple as a few air bubbles remaining in the system or if it's something serious

Thank you to any one that can shed any light on this issue

The power steering fluid I used
https://www.biltema.se/en-se/car---mc/c ... 2000028148



ljsommar1
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ljsommar1

Re: Getting jitter in the steering wheel after flushing the power steering fluid  Topic is solved

Post by ljsommar1 » Mon Nov 04, 2019 5:58 pm

I am almost certain that you are correct, you still have air in the system (don’t ask why I am so confident). It should eventually work its way out but it may take quite some time.
What I did was lift the drive wheels off the ground and then turn the wheel from lock to lock. It will still take a lot of turning.
Good luck
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Pluckmaster



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MoVolvos
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MoVolvos

Re: Getting jitter in the steering wheel after flushing the power steering fluid

Post by MoVolvos » Mon Nov 04, 2019 6:40 pm

Does it jitter the entire time turning left and right or at certain points. Does the jitter have accompanying sound?


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BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

Pluckmaster
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Pluckmaster

Re: Getting jitter in the steering wheel after flushing the power steering fluid

Post by Pluckmaster » Wed Nov 06, 2019 8:25 am

@movolvos It had jitter any time I turned it left and right. No there was no sound. But yesterday when I drove it there was no jitter and there was no jitter today either. I looked and saw the fluid level dropped a little. I think there was just air in the system but I'm not sure. Thank you for your help :)



Pluckmaster
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Pluckmaster

Re: Getting jitter in the steering wheel after flushing the power steering fluid

Post by Pluckmaster » Wed Nov 06, 2019 8:34 am

@ljsommar1 thank you. I think air was the issue I'm gonna keep an eye on it to make sure it's not something else :)



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MoVolvos
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MoVolvos

Re: Getting jitter in the steering wheel after flushing the power steering fluid

Post by MoVolvos » Wed Nov 06, 2019 7:36 pm

Pluckmaster wrote:
Wed Nov 06, 2019 8:25 am
@movolvos It had jitter any time I turned it left and right. No there was no sound. But yesterday when I drove it there was no jitter and there was no jitter today either. I looked and saw the fluid level dropped a little. I think there was just air in the system but I'm not sure. Thank you for your help :)
You're welcome, no sound means it's most likely air in the system. Always nice when it's something simple and cost nothing.


Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

EngineeringBloke
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EngineeringBloke

Re: Getting jitter in the steering wheel after flushing the power steering fluid

Post by EngineeringBloke » Tue Nov 12, 2019 6:58 pm

When you pump out the old fluid, it is important to keep adding new fluid on the intake side - drain some out of the return hose, but top up into the reservoir, so the level never goes below low. Then repeat.

This ensures that the pump is never running dry which can cause wear, and avoids air getting into the system.

Not sure that you did actually drain, then only fill at the end.



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