Keep your Buick Regal cool and comfortable with our Buick radiators. If your cooling system has been ailing recently - and threatening to overheat-it is time to replace that radiator. What could have lead to the failure of your Buick radiator? Usually, it is neglecting the coolant mixture maintenance tasks - like changing your coolant fluid at intervals recommended by your car manufacturer. Coolant has anti-corrosive additives in it, but the additives fade in effectiveness over time. Eventually, corrosion will build up in the radiator and lead to clogging. Your radiator could have sprung a leak - usually from splits in the seams or between the tubes and the header. Leaks can stem from too-high pressure in the cooling system. To verify if a leak is occurring, conduct a pressure test to see if leaks from the combustion chamber are bringing in exhaust, which is a common cause of too-high pressure levels. To do a pressure check, purchase a coolant system pressure device; you place it where the radiator cap is located and then pump it up. If the gauge cannot hold pressure for any length of time (the manual will give you the correct specs on this), then you have a crack somewhere. It is wise to determine what prompted your radiator failure before installing a new one. You can then install a new Buick radiator - purchased from our site - with confidence that it will last a long time.