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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


 
 
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Old 06-05-2015, 09:54 AM   #1
kent624
 
Join Date: Jul 2012
Location: MD
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odd steering issue, wondering then jerking on highway

Ive had this steering issue for a couple months now. Ill do my best to describe it.

It only happens on the highway on long sweeping right hand curves. On the street there are no symptoms when i make right hand turns. It doesnt do it on the left side, strictly on the right.

Ill turn the wheel about 15 degrees to the right and the car will turn slightly like a lane change then it will jerk and turn harder but the wheel is in the same place but the wheel feel gets tighter. Bumps will trigger it to jerk when the wheel is slightly turned. Its predictable, i know when its going to happen and when it jerks i can feel the weight transfer to the left side of the car thats probably due to the harder turn. the wheel feels like its not engaged fully when i turn it 15 degrees (steering feels light) then when it catches it feels normal like its supposed to turn that much. its scary as hell.

Ive replace the rack bushing with ES ones and made sure the bolts are tight.
I have new Tein inner tie rods with CS outters
installed Used KTS coils then got an alignment after everything
I replaced the ball joints about 2 years ago and when i got the alignment they said they were fine. They also checked the front coil mounts and they checked out well also.

Ive been reading about possible worn tension rod bushings which im going to check later on this week. Im not sure if they will effect the steering in that way. Im contemplating on replacing the entire rack but im not sure thats the issue. There might be a very small leak on the right side of the rack but if there is its very small and doesnt change the fluid level. Could that small of a leak cause this much of a problem?

Any input is helpful, thanks in advance if you decide to chime in!
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