What can excessive pressure testing of the cooling system lead to?

Excessive pressure testing of the cooling system can lead to damage to components due to the strain placed on hoses, gaskets, and seals that may not be designed to withstand the additional stress. When the pressure exceeds the manufacturer's specified limits, it can cause leaks, ruptures, or failures in these components, which can compromise the integrity and function of the cooling system. Over time, this can result in costly repairs or replacements, as well as potential engine overheating or other serious issues related to coolant circulation and temperature regulation. Understanding the limitations of the cooling system and adhering to safe testing procedures is crucial for maintaining vehicle performance and longevity.