2005 Chevy Van Change coolant

some radiators have a plug on the left side bottom of the radiator. Remove plug and dra9in the radiartor, make sure you have a big enough pan to cover under the radiator to catch the antifreeze. Some radiators do not have a plug. In that case you will have to remove the bottom radiator hose. Best thing is to loosen it up some and let it drain out slowly. Again make sure there is a big enough pan to cartch all the fluid.