What Causes Abnormal Noise After Accelerating the Engine?

[Dale]

Engine abnormal noise after accelerating may result from: engine knocking, insufficient engine oil, excessively low oil pressure, friction between valves and guides or hydraulic lifters, premature gasoline combustion when pistons fail to reach top dead center during compression stroke before spark plug ignition. Solutions: 1. Use gasoline with appropriate octane rating and avoid refueling at unknown gas stations; 2. When forced to use substandard fuel in extreme conditions, employ a gasoline funnel to filter out most water and impurities, thereby improving fuel quality. An engine (Engine) is a machine that converts various forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.