Power Steering - Steering Wheel Jerk
 

2001 Chrysler Concorde, 2.7L
I am getting a strange steering wheel jerk when I start up my car after it is fully warmed up to normal operating temperature. As soon as I start start the car, the steering wheel jerks slightly about three times. The steering wheel moves about a quarter of an inch, in two or three jerks over about two seconds. I think I felt the same repetitive jerking while driving at highway speed on a smooth expressway. Anyone out there know if it is a pump problem or a rack problem?