Regularly examine your radiator. Give your car to run to get a bit and after that turn it off and pop open the hood. In the event the car is running, usually do not open the radiator.
https://www.youtube.com/watch?v=1aPd8ZemaIo
http://vidmax.com/video/108057-LED-Outfitters-Are-You-Presently-Having-Car-Problems-Try-The-Following-Tips