Why does your Nissan hardbody truck overheat when ac is on?

Your Nissan Hardbody truck may overheat when the AC is on due to increased engine load, which can strain the cooling system. Potential causes include a malfunctioning radiator, a failing water pump, low coolant levels, or a clogged cooling system. Additionally, the AC system generates extra heat, which can exacerbate existing cooling issues. It's essential to check for leaks, ensure proper coolant circulation, and inspect the AC and cooling system components.