What Causes Abnormal Noise from the Exhaust Pipe?

[SanSadie]

Abnormal noise from the exhaust pipe can be caused by the following reasons: 1. Exhaust pipe aging: Caused by the aging of the exhaust pipe, which requires re-fixing or replacing the exhaust pipe. 2. Three-way catalytic converter failure: If the car's three-way catalytic converter fails, it cannot properly purify exhaust gases, leading to blockages and compression inside, resulting in abnormal noise from the exhaust pipe. In this case, it is necessary to visit a repair shop or 4S store for professional inspection and repair. 3. Car ignition system failure: If the car's ignition system fails, fuel cannot burn normally in the cylinders, leading to symptoms such as weak acceleration, easy stalling, and abnormal noise from the exhaust pipe. In this situation, a detailed inspection of the car's ignition system is also required.