In the past, automobile manufacturers only required basic forms of leak testing to check standard subassemblies, such as, air conditioning, power train and cooling system components. Traditional hard-vacuum and accumulation methods were—and still are—used to test components such as radiators, evaporators, condensers, air-conditioner hoses, torque converters and valve bodies.
However, test requirements for today’s automobiles are a little different. With advances in fuel delivery technology, engine monitoring and even power sources, the need for innovative leak detection techniques has become essential.