Guess I am going to have to get under her tomorrow. (talk about a loaded statement ) Water may be the problem. I had an oil cooler line blow last fall and used a pressure washer under the car before I started that repair. The tach didn't work and I had some strange problems with the seat belt buzzer going off. Problem went away after a day and I figured something got wet. That something may have been the saftey switch and now it is going to have to be replaced.