
The reasons for a car shuddering when starting are: 1. Clogged fuel system; 2. Aging engine components; 3. Severe carbon buildup in the engine; 4. Incomplete combustion in the cylinders; 5. Poor tire balance; 6. Deformed wheel hubs; 7. Deformed drive shaft; 8. Faulty ignition system; 9. Low engine temperature; 10. Low lubricating oil temperature. The steps to start a car are: 1. Insert the key into the ignition switch, turn it one notch upward to activate the fuel pump for oil supply and initiate self-check of electrical equipment; 2. Press the clutch and turn the key further upward to start the vehicle; 3. Depress the clutch, shift into gear, and release the handbrake.


