Radiator repair jobs can vary greatly in complexity. The simplest fix is a small leak, which fortunately is one of the more common problems. Specialized sealant solution can be poured into the radiator that will seal up small holes. In a pinch, household food items such as eggs and ground pepper can also create a temporary seal.

For the tougher repair jobs, many run-of-the-mill tools will be a necessity, such as a drain pan, wrench sets, pliers and screwdrivers. You should also always have a spare expansion tank available anytime you are performing repairs on your radiator. Additionally, you will also want to have a pressure tester handy. While its use in radiator repair is limited, it is certainly good to have to checking the pressure of the cooling system. Keeping all these tools handy will go a long way in helping you learn how to stop a radiator leak.