Post originale di: akpch ,
I had to replace ignition switch with the same symptoms at 175K. It was replaced by recall at ~50K before. All job was 1 hour including beer. Try wiggle your key in ignition while running. If you can turn it off without distinct feeling of 'click' in the ignition you need to replace the switch. It was switching off for me when I took my leg from the gas pedal on intersections and touched keys hanging from car hey.