i posted a few days ago about a squeek noise when i do full lock keft or right , ave opeend my reservoire bottle for the power steering and its in the normal between min to max probbaly more to max as i topped it up for the sake of it, its still green and looks good not guey or anything.
the noise i think is comign from the auxulliry tensioner unit is it supposed to vibrate as my seems to vibrate there is a liek a little metal sticking out flap that seems to be vibrating is this normal my mechanic says i need to change the unit does this sound right, the noise is like a rubber plastic belt jumping on the tensioner unit

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pls help