['Juddering' while turning; new steering rack installed.]

Sorry I haven't got back to this, been busy and it seems that the car fixed itself. It has not had these issues for a couple weeks now. I hope it stays that way! Thanks to all who offered their insights into my issue.

['Juddering' while turning; new steering rack installed.]

nipper,

 

Sorry about the lack of info. It is  an automatic, I replaced all four tires about a month or so ago. They are showing no unusual wear. There are no lights on he dashboard, and all is running well except for this steering issue. I believe this started back in November sometime? Also, the rack has not been replaced since I have owned it since August...It appears to be original or at least there for a long time. I didn't look for air bubbles in the p/s resevoir.

 

 The only way that I can recreate this problem in the garage is to have the vehicle raised and in drive while my wife turns the steering wheel. It doesn't seem to happen when the car is in park or  the engine isn't running, so torque bind may be a problem. I'm not exactly sure what torque bind is, but it seems to me that if the transmission is in gear when this occurs then torque must be a factor.

 

  This past weekend I disconnected both outer tie rods from the struts and checked for free movement of the strut bearings and ball joints...all appears to move freely with no unwanted movement.

 

If torque bind is the issue, how do I go about correcting?

['Juddering' while turning; new steering rack installed.]

I have a similar issue as this. the steering wheel studders when turning at low speeds, like turning into my garage. I read somethiing about a p/s additive that could help. Is this true? and if so does anyone have a suggestion of what brand I should use?