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Difficult steering after Coupler replacement


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So I bought my car with what I thought was only some somewhat sloppy steering and what I thought was a small oil leak. Long story short, today we determined the coupler wasn't the issue, but installed the MKS one anyways, but we think the Steering box is also leaking.

Regardless of that though, when we took it out for a test drive, it was very hard to move the wheel more than about 15 degrees. It almost felt locked up. Nothing has changed except for the installation of the coupler. Any ideas what that could be? Or is this normal?

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Have you tried to bleed the steering box? I know mine acted very odd when there was air in the lines. Easy turn, then difficult and it would be a little jumpy as I assume assist was coming on and off. Can't see the coupler doing that. Does it do it with the engine off and wheels off the ground?

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6 hours ago, psu_Crash said:

Have you tried to bleed the steering box? I know mine acted very odd when there was air in the lines. Easy turn, then difficult and it would be a little jumpy as I assume assist was coming on and off. Can't see the coupler doing that. Does it do it with the engine off and wheels off the ground?

My steering can also lock up but only when the car is cold, and usually completely frees itself after working the wheel a bit. Any knowledge on that?

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9 hours ago, psu_Crash said:

Have you tried to bleed the steering box? I know mine acted very odd when there was air in the lines. Easy turn, then difficult and it would be a little jumpy as I assume assist was coming on and off. Can't see the coupler doing that. Does it do it with the engine off and wheels off the ground?

Next time I can work on it is this Friday, so I will do this and update the result then. Probably needs a flush anyways.

2 hours ago, StarionTroy said:

My steering can also lock up but only when the car is cold, and usually completely frees itself after working the wheel a bit. Any knowledge on that?

This could also be it. I only bought the car last August, and this was the first time I ran it since storing it in November. Haven't had this issue before, however.

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If you adjusted the play in the box its easy to make them too tight.  They are most worn in the straight ahead position.  When you adjust them to make that right they often can be too tight when turned farther to the less worn parts.  

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Ok, so what seems to have happened is the worm gear seal opened up so it was about empty 😂 that'll do it! Going to add a new seal to that, and need to replace the idler arm, there's a good amount of play in that too. The "bushing replacement kit" from rockauto isn't cooperating so I might just get a complete one from mitsu direct parts?

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3 hours ago, jcat said:

Ok, so what seems to have happened is the worm gear seal opened up so it was about empty 😂 that'll do it! Going to add a new seal to that, and need to replace the idler arm, there's a good amount of play in that too. The "bushing replacement kit" from rockauto isn't cooperating so I might just get a complete one from mitsu direct parts?

Whiteline sells urethane idler arm bushings.

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17 hours ago, TexasQuest said:

Whiteline sells urethane idler arm bushings.

We were finally able to get it together. Got the wrong seal, needed the pitman seal. Waiting another week for rockauto now.

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  • 4 weeks later...

Final update for the thread, pitman seal was a week late, plus I got sick, but the steering is so much better now.

 

TLDR: The old coupler looked ok when we took it off but I think it made a ton of difference. The idler arm was also loose, put on new bushings and a grease fitting. Pitman arm seal developed a leak and that was fixed as well. Now it just needs an alignment.

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23 hours ago, BlueCuda said:

Where did you get idler arm bushings?  I got some duralast ones and my alignment guy didn't like them so he didn't install them.  

I bought it on rockauto. They were a PAIN to install. but they went on eventually.

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