Hi guys just wondering if anyone ever come up with this small issue at the moment if yes let me know what you done or recommend me where to start 🙆🏼‍♂️🙆🏼‍♂️ Pictures down below

I have an amazing 2004 that just clocked 200k miles! Unfortunately, it is now overheating and heater only blows air temp. Today, I tried burping the coolant system hoping that was the problem...~20min at idle adding coolant as necessary...coolant remained at 220f at idle but spiked to 240f...