Where is the heater core on a 1980 Chevy van?

The heater core in a 1980 Chevy van is typically located under the dashboard, near the center of the vehicle. To access it, you may need to remove the lower dash panel and possibly the center console. The heater core is connected to the vehicle's cooling system and is usually housed within the heater box. Always ensure the vehicle is cool and disconnect the battery before attempting any repairs.