What to Do About Popping and Crackling Exhaust Backfire?

[DeFaith]

When the exhaust backfires with popping and crackling sounds, avoid aggressively stepping on the accelerator to resolve the issue. Below are the relevant explanations: 1. Cause: The backfire sound from the exhaust occurs because the fuel injected by the engine at high RPMs is not fully burned. The unburned fuel then enters the hot exhaust pipe with the exhaust gases and reignites. The gasoline explodes within the relatively confined space of the exhaust pipe, producing the popping and crackling sounds. 2. Automotive Exhaust System: The automotive exhaust system primarily discharges the waste gases produced by engine operation while reducing the pollution and noise levels of the emitted exhaust. It is mainly used in light-duty vehicles, compact cars, buses, motorcycles, and other motor vehicles.