Understanding Radiator Hoses and Their Role in Engine Cooling

Radiator hoses transport coolant between the engine and radiator, helping regulate engine temperature and prevent overheating. Over time, hoses can become brittle, cracked, swollen, or weakened from heat and pressure.

This MAP educational video explains how radiator hoses function, what leads to deterioration, and why regular inspection is crucial for maintaining a reliable cooling system.

At the Motorist Assurance Program (MAP), we provide motorists with clear, trustworthy information about how essential systems keep their vehicles operating safely.

Understanding how radiator hoses work and recognizing early signs of wear helps drivers make confident decisions when discussing cooling system maintenance with a service professional.

Common indicators of radiator hose issues include visible cracks, bulges, coolant leaks, overheating, or low coolant levels.

Because these symptoms may also indicate radiator problems, thermostat failures, or worn-out water pumps, proper diagnostic testing is essential to identify the correct cause.

After watching this video, consider consulting a MAP-qualified service facility if your vehicle shows signs of coolant leaks or temperature-related issues.