bleeding the radiator

It's the 4.0 1994 ford aerostar

I am attaching the info below on how to fill and bleed this system but there is no bleeder screw on this engine. There is a pressure relief on the cap so please pay attention to number 3 in the attached documents.

However, here is a guide that help with this as well:

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Please see the attached documents and let us know what you find with this.

Thanks