What are the effects of a car without a catalytic converter?
2 Answers
In the absence of a catalytic converter, the chemical reactions between the three harmful gases in car exhaust occur at an extremely slow rate, and some reactions may not even take place. As a result, these harmful gases are almost entirely emitted into the atmosphere, significantly increasing air pollution. Below is a detailed introduction about it: 1. Introduction One: Generally, catalytic converters are made of ceramic materials, with internal catalysts primarily composed of three rare precious metals: platinum, rhodium, and palladium. These catalysts enable the harmful gases produced by engine combustion to undergo oxidation and reduction, ultimately transforming into harmless carbon dioxide, nitrogen, and water, thereby filtering the exhaust. 2. Introduction Two: Once the catalytic converter is damaged, the most noticeable symptom is a very pungent odor emitted from the rear of the car, as harmful substances like sulfur dioxide cannot be filtered. Most importantly, this causes irreversible pollution to the air.
I've always believed that the car's catalytic converter is crucial. Without it, the first impact is a surge in pollution. Toxic gases like carbon monoxide and hydrocarbons in the exhaust are directly emitted, not only polluting urban air and causing coughing and asthma but also accelerating global warming. Secondly, legally, it causes significant trouble—many regions will fail the annual inspection outright, imposing hefty fines, and driving on the road may lead to being stopped by traffic police and having the vehicle impounded. Economically, it’s also disastrous—once the catalytic converter fails, fuel consumption may increase by over 5%, engine lifespan shortens, and repair costs skyrocket by thousands of dollars. From an environmental perspective, it converts harmful gases into harmless substances; removing it is like tearing down the Great Wall of defense. I advise everyone to check it regularly, avoid reckless modifications, and take responsibility for the environment—that’s the right path.
