I'm having a similar problem. I have a 92 Jeep Cherokee Sport 4 door. I noticed my door joint was getting loose the past few months and never corrected it unfortunately. Now my driver side door won't open all together and I have to crawl in the passenger side. I tried juggling the key and opening from inside and out but nothing seems to work. Pushing the outer door handle button doesn't seem to have the same 'pressure' as before. I noticed before this happened the latch was getting banged up when I closed it as the loose hinge was creating a disparity in the door's elevation. Sounds confusing I know but just trying to paint the picture best I can with words. Please HELP!