Why does the Odyssey's exhaust pipe make a popping sound?

[LaCharlotte]

There are many reasons for abnormal exhaust pipe noise, mainly including exhaust pipe aging, vehicle three-way catalytic converter failure, vehicle ignition system failure, abnormal concentration of combustible mixed gas, etc. The specific reasons are as follows: 1. Exhaust pipe aging: When a car is too old, the exhaust pipe is prone to aging problems, leading to loosening, detachment, or holes, which ultimately cause abnormal exhaust pipe noise. This situation is relatively simple to resolve, requiring only re-fixing or replacing the exhaust pipe. 2. Vehicle three-way catalytic converter failure: If the vehicle's three-way catalytic converter fails, it cannot properly purify exhaust gases, causing them to block and compress inside, leading to abnormal exhaust pipe noise. This situation requires professional inspection and repair at a repair shop or 4S store. 3. Vehicle ignition system failure: If the vehicle's ignition system fails, fuel cannot burn normally in the cylinders, and the vehicle may experience symptoms such as weak acceleration, easy stalling, and abnormal exhaust pipe noise. This situation also requires a detailed inspection of the vehicle's ignition system. 4. Abnormal concentration of combustible mixed gas: If the concentration of mixed gas in the engine is too high or too low, it will cause abnormal combustion, leading to abnormal exhaust pipe noise. This situation is more complex and requires professional inspection at a repair shop or 4S store.