Why does the exhaust pipe make a popping sound?

[QuinnFitz]

Exhaust pipe making a popping sound is caused by excessive carbon deposits on the throttle valve, intake tract, intake valve, and combustion chamber. The functions of the exhaust pipe are: 1. Reducing environmental pollution—the exhaust pipe contains a purification device, with a three-way catalytic converter that effectively cleans harmful gases from the exhaust; 2. Ventilation and exhaust—the car exhaust pipe operates in a cycle of intake, compression, work, and exhaust, and the car cannot run without an exhaust pipe; 3. Noise reduction—the exhaust pipe is equipped with a muffler, which reduces car noise by using multiple channels to split the airflow, causing friction and collision between the split flows to gradually reduce the airflow speed, thereby lowering noise through repeated cycles.