how do I drain the Radiator
There is a petcock or a plug, on the opposite side of the lower radiator hose on the bottom of the radiator tank, facing the engine. Look at this sight at the radiator. View the details to get a closer look at this one. It is on the right bottom facing you... https://www.carid.com/apdi/radiator-mpn-8012442.html?singleid=22121121&url=1095069
If you don't have a drain loosen the bottom hose.
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