Strange steering

Hi. New member here. I've had my TF for around six years and love it.



Problem is, recently it's steering strangely.



Sometimes it's fine and driving superbly and then I'll go round a corner or roundabout and the steering wheel feels very light, or I'll have to turn the wheel further than I usually have to putting in no real effort.



Obviously this is making me jumpy, particularly as I've a long drive this week to visit the folks for Christmas!



Thanks in advance.

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