72′ Demon Door mechanism

I have a problem...my passenger door does NOT open for the life of me. Its not a matter of the outside button or inside handle being connected to the mechanism, or the mechanism being locked, it is, for the lack of a better word, broken, internally. The mechanism levers have the look like the latch is engaged in the first "click" when you close the door. Not sure if this is a common problem and or if anyone has any ideas...the only other way to get the door open is to cut a hole in the outside of a perfectly rust free, straight door to get it open...
Author: admin