Hi folks. I have a 1990 Chrysler New Yorker that every once in awhile (out of nowhere) refuses to keep running when I start it. I have tried locking and unlocking it with the key many times. When this happens, it may take a day or two, but with perseverance, it will finally start and keep running. Why it finally decides to keep running is anybody's guess. This may only happen a couple times a year, but when it does, I am usually lucky I am at home. Other than trying to keep locking and unlocking the doors to reset the security (which doesn't work) is there any other possible reason this may happen? Thanks.