(Äk'sÄn-trÄ­s'Ä­-tÄ) 1  A measure of the deviation of an elliptical path, especially an orbit, from a perfect circle. It is equal to the ratio of the distance between the foci of the ellipse to the length of the major axis of the ellipse (the distance between the two points farthest apart on the ellipse).
An apparently common problem with GM Tilt Steering columns is that they become loose from four bolts backing out deep in the tilt assembly. A good shop will be experienced in taking care of for about $100. With the correct tools and a bit of patience you can fix it yourself. You Will Need.
Power Steering Pump Replacement. If the stop-leak is unable to solve the problem, you may need to check out the transmission fluid pump. If you opt for a dealer to fix the pump problem, power steering pump replacement may cost around $200 - $220. However, if your choose to approach a car mechanic, then it can be done in around $100 - $120. Now, as far as the power steering pump cost is concerned, you may have to shell out somewhere around $100 - $150. Again, the cost of a pump varies from vehicle to vehicle. If you search precisely, there are surely some cheaper deals on the Internet for power steering pumps.