What Are the Causes of Engine Shaking and Check Engine Light Illumination?

[VanLeah]

Engine shaking and the illumination of the check engine light can be caused by: 1. Poor combustion of the air-fuel mixture in the engine; 2. Malfunctions in the spark plugs, high-voltage wires, or ignition coils; 3. Abnormal fuel supply pressure and faults in the intake pressure sensor. The function of the engine is to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, causing the gas to expand and push the pistons to perform work. The main components of an engine include: 1. The valve train; 2. The crankshaft and connecting rod assembly; 3. The ignition system; 4. The cooling system; 5. The lubrication system; 6. The starting system; 7. The fuel supply system. Methods for engine maintenance include: 1. Using qualified engine oil; 2. Using qualified coolant and antifreeze; 3. Regularly cleaning the radiator scale; 4. Regularly removing engine carbon deposits; 5. Regularly replacing the three filters (air, oil, and fuel); 6. Maintaining a reasonable engine speed.