The altch may be stuck or the rods are stuck. Pull the door panel off, won't be easy, then try moving rods by hand it may have a clip broken on one of the rods not allowing it to unlock. The clips are plastic and after age will beak they should be available at auto parts. See pic for example. Item 3 is for door lock
Image (Click to make bigger)
Monday, February 17th, 2014 AT 9:42 AM