my daughter just also informed me this morning that the 94 grand prix i mentioned with the possible ignition switch/security/key tumbler problem has also been doing something else all the time,it appears that while driving normally just before the car will act up and stall before not starting again that the car locks (which normally automatically lock once the car is put in gear,then unlock when the car is put in park)will all of a sudden while in gear and moving unlock then lock then unlock again before car stalls, hope this helps bob