i had the same issue.what worked for me in this case is first of all i opened the power steering fluid reservoir and used a magnet on the inside to get out any shavings that may have developed over the years.also start the car and turn the wheel when you do this so that you can get as much out as possible.check the magnet to see if there is alot of metal.anyways after that procedure i made my own device to extract all of the fluid for the reservoir.after doing that i replaced it with rislone power steering fluid for discount advanced auto parts.6-7 dollars.since replacing the fluid,also check the tire pressure in the front of the car,the lower the air pressure the harder the power steering has to work.also check for leaks on the ground after doing all of this.the reservoir also contains a filter on the inside.i cleaned mine out before and ever since i did all of these steps,my power steering has been fine....hope this helps...marco