Open your doors, you may need to remove your fenders .Then find the nuts for the hinges, remove the nuts while supporting the door. Be careful of your door. Remove the hinges from the frame, replace, follow through in reverse.
Replace the hinge pins and bushings.
I need passenger door hinges for my chevy aveo 2007
Your local auto parts store can sell you an inexpensive tool to remove and replace that door detente spring. Other hinge parts such as the pin and roller for the door detente and hinge pins and bushings are also available.
I found an excellent web page that walks you through this step by step: http://bodyshopzone.com/archives/mechanical/door/hinge/pin_replace_1.html
need to replace door hinge pin on 189 mitsibushi Triton tray back
I would recommend you replace the entire hinge and forget about repairing it. In my experience this is the best route to take.
You can replace the top door hinge with bottom hinges on the 1992 as long as the hinge is for the cab doors. The hinges for the tailgate would not work on the doors.
Replace all the door hinge pins and bushings. By doing so it will realign the door back to where it belongs.
The price to replace these items can be anywhere from 20 dollars to 450 dollars. It depends on where you go to have it done and what they charge.
to the left of the steering column, near the door hinge
break off the bottom bushing that hold door pin pick up on the door slightly use a hammer and screw driver to drive pin out and replace
http://www.bodyshopzone.com/archives/mechanical/door/hinge/pin_replace_1.html