steering

my micra steering makes a slighte knocking sound when i turn steering left or right sounds as though its coming from top of system just inside top and bottom covers could this be a bolt that just needs tightend any advice would be welcome
 
Could be a bearing. Check the ishaft at the back and ensure it’s tight. It also could be the ishaft bearing, grab the ishaft at the back and see if it moves.
 
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