After your car is warm, shut off the engine and if you have an electric fan disconnect it. Feel teh radiator in different spots. It shold feel the same temp. If it has cold spots or is loose fins and corrosded, then your radiator is bad. As you say it's custom built we have no idea what has been doneto itor whateever.
Sunday, February 20th, 2011 AT 5:42 PM