What are the reasons for car shaking after starting?

[OLuna]

The reasons for car shaking after starting are: 1. Low ignition energy; 2. Poor fuel atomization at low temperatures; 3. Fuel requires higher ignition energy; 4. The spark plug's ignition gap increases after prolonged vehicle use; 5. Severe engine carbon buildup; 6. Poor performance of the ignition system, with suboptimal spark plug firing; 7. Unstable oil pressure. The solutions are: 1. If it's not feasible to disassemble the intake tract for cleaning, you can use a no-disassembly fuel system cleaning device, though the effect may not be as ideal as disassembly; 2. It is recommended to replace the spark plugs. Depending on the situation, you can clean the spark plugs or adjust the spark plug gap for continued use. If they are in poor condition, replacement is necessary.