Does a Clogged Catalytic Converter Make Noise

Yes, a clogged or damaged catalytic converter can make noise, though not always. Depending on the severity of the clog and the internal condition of the converter, you may hear rattling, hissing, or roaring sounds coming from underneath the vehicle. Types of Noise a Clogged Catalytic Converter Can Make 1. Rattling Noise 2. Hissing or…