Subject: Key wont stay put!
Question:

Hi Anthony, I have a 95 Galant S series (Automatic) that a while ago that my original key(worn) would no longer turn in lock cylinder. I found my spare and now the key will not stay put in the start position when starting the car. Admittedly, I did take a couple things apart (electrical ignition switch) and the pieces below the steering column- 1 piece looks to interact within the ignition assembly, but swear that I put all pieces back in correctly. So could the problem be the electrical ignition switch or the whole assembly(lock cylinder)? Any direction would be greatly appreciated.
Thanks,
PHIL

Answer: Phil,
If the key got worn down enough that it would no longer turn, then there is a good chance cylinder lock for the key is also worn; causing the spare key to also have problems. I would suggest replacing the cylinder lock altogether.
Good luck!