1993 mercury sable wagon 3.8 sterring jerks back to center while turning.is it rack or power sterring.drive great going straight.
Aug 27, 2012 at 10:13 PM
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KHLOW2008
✓Experienced Mechanic
41,812 POSTS
Such problems are caused by the steering rack control valve.
A loose power steering pump belt can cause jerky movements as well. Check the belt tension first and tell tale signs are usually screeching noise when turning the steering.