A key lock works by putting a key in and when you turn the key it pushes a loose round piece which releases the lock.
To cut my work in half... Do you mean the door lock or the ignition lock ??
Bad door lock actuator.
Try shooting a thin penetrant into the lock, and trying it. Do this daily for a week and if it doesn't work, replace the lock. not enough info. are you saying key doesn't work or manually locking by hand won't work, or both, key turns but door doesn't lock??? etc.
Ask Wikipedia. Search under pin tumbler lock.
draw for shotguns
nothing your doomed
A monkey.
it just works
my discovery 3 rear door lock will not lock with remote
The slide lock and release lever on the P9 was removed from the P9T.
curtains work by giving your window another layer to lock heat in
To fix a lock on a door, you can try tightening the screws on the lock plate, lubricating the lock mechanism, or replacing the lock altogether if it is damaged beyond repair. If these steps don't work, consider seeking help from a professional locksmith.