How to Solve the Abnormal Noise from Lavida's Exhaust Pipe?

[DeGriffin]

Abnormal noise from the exhaust pipe is most likely caused by a large amount of water accumulation in the pipe. The reason for the water accumulation is the excessive moisture content in the fuel used. In this case, replacing the fuel with higher quality can solve the problem. At the same time, it is also necessary to secure or replace the exhaust pipe. The following are the detailed reasons that may cause abnormal noise from the Lavida's exhaust pipe: 1. Overly rich air-fuel mixture: Once the air-fuel mixture is too rich and not completely burned, coupled with the prolonged combustion time in the cylinder, when the engine's next power stroke begins, unburned combustible mixture enters the exhaust pipe along with the exhaust gases. When this mixture encounters fresh air in the exhaust pipe, it reignites, resulting in engine backfire. At this time, a noticeable abnormal noise can be heard from the exhaust pipe. 2. Aging of the exhaust pipe: When a car is too old, the exhaust pipe is prone to aging issues, leading to loosening, detachment, or holes, which ultimately cause abnormal noise from the exhaust pipe. This situation is relatively simple to resolve, requiring only re-securing or replacing the exhaust pipe.