Radiator Cap Testing and Replacement:
The radiator cap keeps your engine cool by sealing and pressurizing the coolant inside. It is designed to hold the coolant in the radiator under a predetermined amount of pressure. Once the pressure reaches its maximum, the cap opens the release valve and allows heat to escape. As the coolant expands when heated by the engine the cap contains the coolant in the cooling system and raises the boiling point of the coolant, thus protecting your engine in a wide range of temperatures.
To maintain your cooling system, it’s important that even the smallest components are working properly. If coolant is not moving effectively throughout the system and your car is overheating, have your service advisor check the radiator cap. A new cap is an inexpensive repair and can prevent future damage.
A Failing Radiator Cap can Lead to Expensive Repairs:
A malfunctioning radiator cap will cause the coolant to boil, and your engine will not get the proper amount of cooling. If ignored long enough, the engine will overheat, leading to costly repairs.A simple and inexpensive part is well worth testing every few years.
From a safety standpoint there is a slight risk, because an overheated engine might leave you stranded. There is high environmental impact, because leaking coolant is harmful for children, pets and other animals.
