Who accurately describes pressurization's role in the coolant system?

Pressurization in the coolant system plays a crucial role in preventing coolant from boiling. When the coolant is pressurized, it can withstand higher temperatures before turning into vapor. This is essential in maintaining effective engine cooling because if the coolant were to boil, it would lead to the formation of steam, which does not effectively transfer heat. Consequently, this could cause the engine to overheat, leading to potential damage. The pressurization of the system allows the coolant to operate at higher temperatures, improving its efficiency in thermal management within the engine.

In the context of technician statements, while the roles of enhancing heat removal and maintaining engine efficiency could be secondary benefits of an effective coolant system, they don't specifically highlight the critical aspect of preventing boiling, which is the primary function of pressurization in the coolant system.