Friday, 6 September 2019

4 Typical Signals Of A Faulty catalytic Converter

A catalytic converter is a car component that helps reduce emissions and environmental pollution from vehicles. It is a metal container that is built into the exhaust system. It is filled with a chemical catalyst, usually a mixture of platinum and palladium, and helps to convert the vehicle's emissions into harmless gases. Typically, a faulty catalyst will result in one of these four symptoms that alerts the driver that replacement may be required.

Reduced engine power

One of the first symptoms often associated with a failed or precipitating
catalyst is a reduction in engine performance. The catalytic converter is installed in the exhaust system of the vehicle and therefore may affect the performance of the engine if problems arise. A clogged converter obstructs the exhaust flow while a cracked noxious gas escapes. Any fault can have a negative effect on engine performance and cause a reduction in power and acceleration as well as fuel consumption.

Rattling noise

Rattling noises under the vehicle are another symptom of a faulty catalytic converter. When a catalyst ages due to over-rich fuel blends or is damaged internally, the catalyst-coated honeycomb nets inside the catalyst may collapse or break apart and cause rattling. Rattling may be more obvious when starting the vehicle and will worsen over time.

Sulphur odour from the exhaust

During engine combustion, sulfur-containing gasoline becomes hydrogen sulphide. A properly functioning catalyst converts hydrogen sulphide into odourless sulphur dioxide. If this fails, you may notice a sulphurous, foul egg-like odour from the exhaust. Unburned fuel remaining in the exhaust gas due to the poor catalyst, generates the odour and may even cause dark exhaust smoke.

Check that the engine light is on

A defective catalyst can also cause a flashing Check Engine Light. The oxygen sensor and the air-fuel ratio sensor in modern vehicles monitors the efficiency of the catalyst by monitoring the gas level in the exhaust. If the computer detects that the catalyst is malfunctioning or catalyzes the exhaust gases properly, the Check Engine Light is activated to alert the driver of the problem. A variety of other problems can activate the Check Engine Light.


The catalyst is one of the most important emission components of modern vehicles. Otherwise, the vehicle may cause excessive emissions that are harmful to both humans and the environment. If you suspect there is a problem with your catalytic converter, have the vehicle checked by a specialist to determine if the car requires catalyst replacement.
If you need help on your vehicle,you can Call / Whatsapp us on 08060260382.

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