There is a slight chance that the seal has melted. I remember, one night, I was pushing the car from trafic light to trafic light and the water temperature rise to 100 just before the oil light came on. Probably from overheating to the point it thined the oil out and the pump couldn't rise it to the valve head. Well guess we ll find out next week when I ll get the box out. I am not looking forward to it though!