Something you might try is turning the steering wheel slightly before turning the key. The locking mechanism that keeps the wheel from turning if the ignition is off sometimes puts pressure on the cylinder so that the key won't turn, and pulling the wheel to one direction or the other may help relieve that pressure.
Older Chevy's have a steering lock when the key isn't in the ignition.
car lock freez up
So it would seem. If the ignition is in the column it may also be jammed by the steering wheel lock. Try turning the steering wheel and holding it while turning the ignition key.
Turning my ignition on and wont turn off because it is faulty.
try wiggling the steering wheel it has a lock on it
either the ignition switch or the lock cylinder itself is bad. I would change both and check the rod that goes into the switch to make sure it is not binding up
its either the starter or your ignition
change ignition switch and/or tumbler
im not a professional but that's happenned before i my 97 Avalon and we replaced the ignition switch.its about 80 dollars and very easy to replace yourself.
It may not be connected right.
If the lock barrel turns, then it's in as far as it needs to go. Otherwise, if the lock barrel doesn't turn, then it's faulty and needs to be replaced. This can unfortunately, sometimes entail replacing the entire Steering Lock Assembly.
Actually what is the question?