Hi all thought I'd say hello. I've recently brought a 2006 st3 overall I'm happy with the car. When buying I knew it had a alternator, battery, steering rack and pump last year. Any way yesterday after starting the car and driving for about a minute the steering went tight when coming off a island then went back to normal almost instantly it also done it again this morning. It only does it when first started and driven? I've checked the power steering fluid level and that's fine. There also seems to be a faint knock when sitting with the car running and rocking the wheel to left to right? Any suggestions? Cheers Jay