for some reason my car wants me to add coolant, all the time, even with the rad almost completely topped off. Anyone ever had this happen to them?

 

ever check the wiring and the sensor to make sure its working and the connection is good to it. sits in the middle at the top of the radiator.

 

bleed it good try searching the forum good luck

 

Bleeding it will most likey solve your problems...FSM says how to properly fill it as well.

 

I had the same thing and it was driving me crazy with the buzzer that would come on. The only thing that fixed the problem was to get a new engine...
just kidding the only thing that fixed it was to replace the sensor.

 

Mine doesn't buzzzzzzzz when the warning light is on. Thank god.

ontopic

Are you sure you filled the radiator and not the overflow thingy?