A catalytic converter is an important part of a car's exhaust system, and it can go bad for a number of reasons. Here are three signs that your catalytic converter may be going bad:
1. Check Engine Light is On - One of the first signs that your catalytic converter may be going bad is if the check engine light comes on. This could be due to a clog in the converter or an issue with the oxygen sensor.
2. Reduced Fuel Efficiency - Another sign that your catalytic converter may be going bad is reduced fuel efficiency. If your car seems to be losing power or not running as efficiently as it used to, it could be because the converter is not working properly.
3. Exhaust Smell - A final sign that your catalytic converter may need to be replaced is if there is an unusual smell coming from the exhaust system. This could indicate that the catalyst has been damaged and needs to be replaced.