HOW CAN A LOOSE STEERING PROBLEM BE CORRECTED?
By tightening it?
Oh, sorry:
BY TIGHTENING IT?
TIGHTENING THE BOLTS DIDN’T WORK 
Lose the CAPS.
Then block both front wheels up off the ground and determine WHERE it’s loose…Replace the worn parts. Play in manual steering boxes can be adjusted out…
Thank you…mention has been made it might need a new steering column…is that logical?