The front doors on my 1998 park avenue will not open from the out side. Something has come loose and I need a diagram to see what might be wrong.

The part that has come loose is most likely the door handle linkage. this linkage goes from the handle down to the door latch. if you remove the door panel you should be able to see the disconnected linkage. lots of time the little plastic clip that holds the linkage to the handle breaks AND sometimes the little arm on the end of the handle itself breaks. again, remove the panel and the problem should be very clear. when reinstalling the linkage make sure the travel is smooth to the latch ( a latch problem could have caused the disconnection or breakage,, and you might need to also replace the latch(?) ).
if you have any other questions about this problem please feel free to ask,, I will do my best to walk you through the steps.

c...

ps, I am sorry, but I looked everywhere for a diagram of the linkages and was not able to find one on line,, but I know that if you go down to your local auto parts store and get a repair manual for your year and make car - there will be a diagram in there.