What is the 110 volt plug under hood on 2000 silverado for Its a male drivers side up next to radiator. I think its keep engine warm but not sure?
That 110-volt plug on your 2000 Silverado is most likely for a block heater. Its purpose is to warm the engine coolant before starting, especially helpful in very cold climates. This makes starting easier and reduces wear and tear on the engine and battery during cold weather.