Door locks don't work on 1993 300ZX Twin Turbo

[gman2004]

I got a '93 300ZX twin turbo yesterday. The driver side door lock turns all the way to the left and right , but does not unlock the door. On the passenger side, I am able to insert the key, but the key does not even turn left or right to unlock the door. What could be the issues with both door locks? I guess the driver side will need some repair with some part that is broken. The passenger side lock not turning in any direction is something I have no idea was the issue may be.

[blackice280zx]

spray wd40 in the cylinder for starters. The tumblers could be seized on the driverside one.

[Roach]

sell it and buy a z31

[evildky]

drivers door sounds like a rod ppped off, nto a big deal just gotta fische around int he door and get ti recomnnected, the passanger door, could be a worn key, worn tumblers, or just sticking turblers, or if the door or handle were ever replaced some retard might have neglected to change the key cylinder over (mine was one fo these) in whihc case you take the cylinder out and take it to a locksmith and have it keyed to match your key