The tanks are removed and the old core is replaced by a new one. We use GDI, or Craig, cores. Usually, patching is not recommended as holes typically indicate corrosion throughout the radiator. Some holes, however, such as rock damage, do not indicate these problems and can be patched. Cooling system fluids, then, are not properly circulated through the engine and heater.
Replacement is necessary.
We offer complete water pump replacement on all cars and light trucks. Leakage of fluid inside the car can be a messy problem. It can be fixed by replacing the heater core. We offer complete heater core replacement on all cars and light trucks. Usually, however, this is not the best solution.