What Causes Loud Engine Noise During Rapid Acceleration?

[VonLaura]

The causes of loud engine noise during rapid acceleration are: 1. Exhaust pipe leakage - When there's leakage in the intake or exhaust pipes, the vehicle produces louder roaring sounds as the exhaust flow rate increases during acceleration; 2. Dirty throttle valve - If the throttle valve fails to open to the optimal position due to clogging, it leads to poor air-fuel mixture ratio in the engine, resulting in noise during acceleration; 3. Engine misfire - This mainly refers to situations where one or more cylinders in the engine aren't functioning properly. An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, and electric motors.