Over the last couple months, My Xj's locks have gotten wore and worse.
When I stick thekey in it's fine, but when I try to turn the key, it will not turn AT ALL until jiggle it back and forth and in and out a bit to get it to "coarsely" rotate to unlock or lock the doors.
I've sprayed silicon lubricant in it in a pinch and it freed up for a while but now it's back and barely turning. Got belo 20 yesterday and I had to breathe in to the cylinder to get it to move.
Any thoughts on how to free up the locks? Lube seems to only work on the drivers door.

 

This is some what happening to my 96 as well. With mine it is either perfectly fine or it requires some back and forth movement to open it. But today it fully locked up on me and I wasn't able to get it to open.

I just searched it And found some tips. And then I also found some people who try it one day and it doesn/t work. Then the next day it does... So I'm hoping thats the case with mine. If it persists then I'll take my panel out and check it out. In the mean time just search it on google so you can read what I read ad maybe one of those ideas will help you. good luck