Chevrolet Repair: door locks on 74 corvette, 74 corvette, latch assembly

Question
the doors are locked and we can't get them unlocked by the button or by a key, how can we get them unlocked?

Answer
HI LOIS, ARE THESE ELECTRIC LOCKS OR MANUAL ??? YOU CAN GET IN THROUGH THE TRUNK ,YES !!! I GUESS AT THIS POINT IT REALLY DOES NOT MATTER IF THEY ARE MANUAL OR ELECTRIC,UNLESS THE BATTERY IS DEAD,IS IT ??? IF SO, JUMP OR CHARGE THE CAR FROM THE STARTER CABLE UNDER SIDE OF CAR,DRIVERS SIDE,[THE BIG RED CABLE AND GROUND THE NEGATIVE SIDE TO THE FRAME,THEN AFTER IT IS CHARGED GET A UNLOCK TOOL AND HIT THE UNLOCK BUTTON THROUGH THE UPPER SIDE OF WINDOW. YOU WILL NEED A SLIM JIM THAT TOW TRUCKS DRIVERS HAVE FOR LOCK OUTS. IF THIS IS A MANUAL LOCK YOU ARE NOT GOING TO LIKE THIS BUT, THE ONLY WAY TO GET THESE DOOR UNLOCKED IS YOU ARE GOING TO HAVE TO REMOVE THE INNER DOOR PANEL,AFTER GETTING IN THROUGH THE TRUNK HATCH,, NOT FUN BECAUSE THE DOORS WILL NOT OPEN !!!! YOU MAY HAVE TO BUY OR REPAIR THE INNER DOOR PANEL AFTER THIS !!!ONCE YOU GET INTO THE CAR SEE IF YOU CAN REMOVE AS MANY SCREWS AS POSSIBLE THAT HOLD THE PANEL IN PLACE. I THINK THERE ARE SEVERAL ALONG THE LOWER PORTION OF THE PANEL,WHICH YOU WILL NOT BE ABLE TO GET AT EASILY. THERE WILL ALSO BE SCREWS AROUND THE DOOR HANDLE AREA, REMOVE THEM, AT THIS POINT YOU WILL NEED TO GET NASTY WITH IT,USE A HOOK TYPE TOOL TO GET BEHIND THE PANEL AND PULL THE PANEL TOWARDS YOU UNTILL THE PANEL COMES OFF. THIS WILL NOT BE PRETTY. BUT IT IS THE ONLY WAY. ONCE THIS PANEL IS OFF, GET A FLASHLIGHT AND OIL THE DOOR LATCH AND LOOK IN AND SEE IF THE HANDLE IS MOVING THE RODS TO RELEASE THE LATCH. IF NOT HOOK THEM UP OR MANUALY MOVE THEM TO OPEN THE DOOR.>>>>>>>>>>> IF YOUR KEY FEELS LIKE THE TUMBLER IS WORKING, BUT WONT UNLOCK,, TRY TO PUT A LONG THIN TOOL THROUGH THE LOWER SECTION OF WINDOW TOWARDS THE REAR SECTION TO GAIN ACCESS TO THE LATCH. USE A FLASHLIGHT AND SPRAY SOME OR ALOT OF OIL ONTO THE LATCH ASSEMBLY AND KEEP WORKING THE KEY BACK AND FORTH. . PUT A VISE GRIP ON THE KEY TO EASE THE KEY MOVEMENT,,,[DO NOT FORCE THE KEY IN THE LOCK BACK AND FORTH] THIS IS JUST TO MAKE IT EASY ON YOUR FINGERS, SOMETIMES THE LOCK WILL RELEASE THIS WAY,TRY BOTH DOORS THIS WAY..ALSO TRY ANOTHER KEY JUST IN CASE THIS KEY IS NO GOOD. THIS MAY TAKE A LONG TIME TO FREE UP THIS WAY,,, BUT IT IS WELL WORTH IT. LET ME KNOW IF YOU NEED MORE INFO ON THIS.PLEASE WHEN LEAVING THIS SITE WOULD YOU PLEASE RATE MY ANSWER.THIS WILL HELP ME.THANK YOU ,TOM..