the ignition key/cylinder/tumbler won't turn. What might be causing this?
The ingnition key tumbler won't turn!! That's it. It's locked up. It is on a 2009 Ford Taurus. This happens occasionally, but several tries will usually get it to turn--not this time.
You ignition switch is out.
Like sixfootsix says ignition is out or the key is badly worn if you have a spare key try using that.
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