Why would the earth terminal get hot when the car is off?

Cars & Vehicles

This depends what Earth Terminal you mean

The one on the top of the battery, You may have a bad battery. Disconect it and come back in 24 hours and see if it is dead. Not dead means that there is a short in the electrical system and this terminal needs cleaning.

If the battery is dead the battery is bad, replace it.

If this is another terminal and gets hot and stays hot it means there is a large draw on the system and this terminal is dirty and requires cleaning.

The hot terminal is allways the highest resistance in the system.

Good Luck

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