The ignition switch is faulty based on the symptoms described. Though your vehicle is out of the recall range, it is not a trouble free component and can fail too.
The next time it occurs, note if the dash indicator lights are showing. After restarting and when it stalls after letting go of the ignition key, note if the dash lights are showing as well. If they are not showing, it confirms the ignition switch is faulty.
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Sunday, December 16th, 2012 AT 6:48 PM