Just recently my power steering has started doing something strange.
When you turn the steering wheel the power steering works fine, but as soon as you come off the turn (ie the split second you start the move the steering wheel the other way) the power steering wheel will 'yank' itself back round about an inch or two before going back to normal operation.
So to exagerate the movement, if i gently move the steering wheel left to right only by a few mm, the power steering will start going crazy and shaking the wheel left to right about 2 inches without me doing anything!
It does this when the car is stationary or when it's moving... which is why i'm quite concerned because it's fighting me when i'm trying to go around corners!
It's a 2004 1.7 CDTi (100) Club
I've got a diagnostic kit but it didn't come up with any error codes. One thing i did notice was that the throttle sensor was reading 78% with my foot off the pedal and when fully pressed it goes down to about 10%, is this right? would this have anything to do with it or something totally different?