Every couple of months my 2002 Olds Intrigue won't start. Although the gear lever is in Park the gear sensor doesn't think so. Moving the lever in and out of park repeatedly fixes the problem. Once while doing this my gear lever jammed. When I returned two hours later it was unjammed. Is it an inexpensive repair to adjust the gear sensor? - or should I just live with it? - or should I get rid of the car because something more serious is developing? Many thanks.