How Does a Bad Catalytic Converter Affect Vehicle Fuel Economy?

Mechanic checking for blockages in the exhaust system that can lead to increased backpressure and reduced fuel economy.

A catalytic converter is a crucial component of your vehicle’s exhaust system, responsible for reducing harmful emissions by converting toxic gases into less harmful substances. When it fails, it can lead to a variety of performance issues, including a significant impact on fuel economy. Understanding how a bad catalytic converter affects fuel economy can help you diagnose problems early and …

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Can a Bad Catalytic Converter Cause Bad Gas Mileage?

Can a Bad Catalytic Converter Cause Bad Gas Mileage?

At the tail-end of your vehicle’s exhaust system lies the catalytic converter, which filters harmful gases out and converts them to less hazardous ones. When it fails, you may notice your car feels sluggish when accelerating or there is black exhaust smoke with an unpleasant rotten egg scent. The catalyst contains valuable metals such as platinum, rhodium and palladium that …

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