Changing thermostat

I will attach the process from the manual below. However, here are some guides that will help with this:

https://www.2carpros.com/articles/replace-thermostat

https://www.2carpros.com/articles/how-an-engine-thermostat-works

Plus, here is a video that will help with a different Chevrolet. Clearly not the exact same process but it has some good visual tips.

https://youtu.be/jhXBAtcutQo

Please let me know what questions you have with the info below.

Let us know what you make out.

Thanks