Posts Tagged: catalytic converter testing

How to Diagnose a Bad Catalytic Converter the Right Way

How to Diagnose a Bad Catalytic Converter: What Experienced Mechanics Actually Look For Quick Summary There are no wear parts inside a Catalytic Converter, so they don’t die on their own; they’re murdered. If they’re fed too much fuel, oil, or coolant, they can overheat and melt. Misfires, internal leaks, cold-water shock, and impacts are the most common causes of catalytic converter failure. In other words, a bad catalytic converter isn’t the cause; it’s the result of another problem. When diagnosing a bad catalytic converter, I never rely on a … Read More