Top Catalytic Converter Signs Going Bad: What You Need to Know

Diagram of a car's exhaust system highlighting signs of a failing catalytic converter, including a check engine light, rattling noise, dark exhaust smoke, and sulfur smell.

If your car has been acting up lately, you might be experiencing “catalytic converter signs going bad.” The catalytic converter is a critical component of your vehicle’s exhaust system, helping to reduce harmful emissions by converting toxic gases into less harmful substances. When this part starts to fail, it can lead to a range of issues that affect your car’s …

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