My fan hasent been going on lately. I was just checking up my coolant and trying to get more air out of the system, and i left the car idling. While it was idling i was cleaning the engine, just disting it and polishing some stuff. All of a sudden the fan goes on, so im like "wow it finally worked". Then i go look at the temp and its at 260 degrees!!!. I dont know why my fan doesnt turn of sooner or anything. I was thinking it could be the sender, and while the car was idling before it overheated i unpluged what i though was the sender (the grey plug that is going into one of the heater lines right by the passanger side firewall, and the fan didnt turn on. i hate this car