Question about 1998 Kia Sephia

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Steering jerks left a bit when slowing down

No jerking on acceleration. Lock to lock steering in parking lot on rack and pinion seems fine. Is only occasional but then can get 2 or 3 jerks in a row. Steering wheel moves only about 1-2 inches each time but the motion is strong and the effect is more likely when steering slightly to the right. There is no noise from CV's, front brakes are recently done, are balanced and non-pulsating..brakes work very well. Steering takes a fair bit of effort both left and right at speeds below 30 MPH. Bearings are silent and cold to touch at all times/speeds. Engine,clutch and transmission seem excellent and smooth. Front end alignment done about 3 weeks ago and new tires installed. Before that, car had very great effort to steer at low speeds but no "jerks" were felt. Ball joints seem ok..not loose.

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How new are your tires and when was the last time for a front end aliment?That might be it.

Posted on Jan 02, 2013

  • John Ward
    John Ward Jan 02, 2013

    Tires are 3 weeks old. Front alignment done using computerized system about 2 weeks ago.

  • connie Jan 03, 2013

    You also could have ice build up on your brakes, or maybe there is something wrong with your tires and there not telling you about it.



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SOURCE: Car jerks to left w/no warning

My opinion, not a good car. But that is a different story. It would be easiest to bring the car in for an alignment. The technician will tell you what the car needs to do the alignment. But if you want to do it yourself then you will need to inspect all the steering componants (tie-rods,struts, lower ball joint, wheel bearings, brakes, wheels, tire wear,tread pattern, and tire pressure, and lug nuts (loose or overtightened). Good luck.

Posted on Jun 01, 2009

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1 Answer

I have a 2001 Oldsmobile aroura and the steering wheel jerks when I make a left turn

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Center a rack and pinion from under the dash

yes you possibly can ( depends on the room available.)
I would do the centring at the top of the rack and pinion as this is where a multi spline is that will allow for correct centring.
when you get the shaft off the box
firstly turn the rack from lock to lock ( wheels of the ground) and position the shaft at the midpoint of the turns counted fro left to right
next with the steering wheel place it in the straight ahead position
put the shaft back on the rack and tighten up the lock bolt

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Was driving straight at 40 mph and car steering jerked hard to the right and then left

You\'d better have your rack and pinion (the steering gear) checked. That is where the power steering pump sends the fluid to and returns from there. Something is wrong for it to jerk like that. There must be some undue pressure for it to push the cap up-something like a blockage, perhaps. I would have a shop look at it. It may be time for a new rack and pinion gear. If it comes to that, be sure and have the old PS pump and lines and PS reservoir flushed or cleaned out. You don\'t want any of that old fluid to ruin the new rack. Check for dirt, crud, or sludge in the fluid.

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When a strut is worn,what are symptons? How can one diagnose it? KIA Sephia 1998?..

some times you will get a bouncing in wheel ,nose dive in front end when stopping or hard breaking, did you try jacking up car so wheel is just off ground ,put a bar under tire and lift up observe wheel movement ,then do other wheels , if it is a strut the wheel will move up and down freely , look for fluid leaking around strut body ,5000 miles is not much of a factor things do break.the other is get the front end off the ground both wheels,SAFELY !!!!!! WITH THE CAR SHUT OFF WHEELS BLOCKED, have one person turn wheel while you observe it , look for anything wrong grab the wheel and try to move left to right (a small ) motion observe what happens ,is there wiggle ? with out moving steering wheel. if not sure of any of these ,PLEASE take it to a mechanic .hope this helps good luck. Woody

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sound like your powersteering pump or steering rack and pinion
could be bad.i would say it is your rack and pinion because if your pump was bad your steering would be real hard to turn instead of being jerky.jerking is usally the sign of a bad rack

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