Help. I lost the keys to my 97 lumina. So I ordered a new key in Chevroley dealer, but it wouldn't turn. The repair shop told us we need to replace the locker. However the car still won't start after they replaced the locker. Now they told us the lock module needs to be replaced. I don't understand how this could happen as the car was running fine before I lost the key. Does anyone know this car well? I think the technician could mess up with the module? I hesitate to pay another $600+ for the new module. I am not even willing to pay for the locker ($400) as it didn't do any good to my car.