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Steering wheel moves on its own

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Old Mar 4, 2023 | 01:51 PM
  #1  
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Default Steering wheel moves on its own

Hi, what would cause my steering wheel to move if it’s own accord? First clip is on a smoothish highway, second vid is on a poor b road.

Full geometry done (twice), tyres <a year old and pressures correct.

car is 2005 997.1 C2S

https://youtube.com/shorts/4mvnECLSzF0?feature=share

https://youtube.com/shorts/Jy7KnWex2tI?feature=share

thanks!
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Old Mar 6, 2023 | 09:14 AM
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Actually, one characteristics of Porsche 911s is that you can feel the imperfections in the road through the steering wheel. I have felt these undulations and imperfections often in my car but I never let go of the wheel while this was happening. Does this always happen with you car or only in certain situations?
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Old Mar 6, 2023 | 10:29 AM
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Smooth road very little movement (drift, perhaps road slope) and bumpy road lots of movement.

Doesn’t seem like the wheel is moving on its own.

Is this something new to you, the car?
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Old Mar 6, 2023 | 11:01 AM
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Tramlining......big fat rear tire.....roads with traffic grooves in them....It happens.....it was really bad on the 350 Shelby......The tires want to track in the grooves....so the car twitches around some....I found it best to moderately grip the steering wheel and let it do its thing.
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Old Mar 6, 2023 | 04:44 PM
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Hi, I’ve had the car since August. Initially the tracking was a little off and the front tyres were about 10 years old and it was very skitty at highway speed. It settled down after resolving those issues. Most other cars I’ve driven (not sports cars) over bumps and undulations, the steering wheel doesn’t move.

I had wondered if it’s a characteristic of having no weight over the front + low profile tyres + short travel suspension etc etc

(to note, standard pasm shocks and springs)
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Old Mar 6, 2023 | 05:30 PM
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Originally Posted by kp278
Hi, I’ve had the car since August. Initially the tracking was a little off and the front tyres were about 10 years old and it was very skitty at highway speed. It settled down after resolving those issues. Most other cars I’ve driven (not sports cars) over bumps and undulations, the steering wheel doesn’t move.

I had wondered if it’s a characteristic of having no weight over the front + low profile tyres + short travel suspension etc etc

(to note, standard pasm shocks and springs)
It’s a feature not a bug.

I own (and have owned) several sports cars and the 911 isn’t even the most “communicative” through the wheel. That feedback is great and did get numbed with the next gens (electric replacing hydraulic).

My Volvos and Mercedes don’t have this feature…
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Old May 3, 2023 | 06:15 AM
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Hi, just to circle back on this, I had my alloys in for a refurb and they found one was buckled. Alloy repaired and no more issues
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Old May 4, 2023 | 10:15 AM
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Wait till you drive one with a proper track alignment. My two car's corner turn in is fantastic, The trade off is a twitchy straight line.
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