What are the symptoms of a bad engine crankshaft?

[AlexaLynn]

There are many symptoms of a bad engine crankshaft. Here is a detailed introduction to engine crankshaft damage: 1. Specific symptoms: When the crankshaft is damaged, the crankshaft clamp will loosen and swing up and down. In severe cases, the engine may be directly scrapped. There will be no high-voltage electricity, no fuel injection, failure to start the car, and the engine fault light on the dashboard will illuminate. 2. The role of the crankshaft and engine: It bears the force transmitted by the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from rotating masses, periodically changing gas inertial forces, and reciprocating inertial forces, causing it to bear bending and torsional loads. The engine converts 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 piston to perform work.