When changing a car radiator, make sure the car is cool and drain the radiator before removing it. Use a pair of plier to remove radiator hoses when changing radiators with help from an auto mechanic in this free video on car maintenance and repairs. Expert: Tom Brintzenhofe Bio: Thomas Brintzenhofe has been a certified mechanic for the past 14 years, and a certified master mechanic for the past eight years. Filmmaker: Reel Media LLC