What are the reasons for car shaking, engine warning light on, and failure to start?

1 Answers
MadelynRose
07/30/25 7:45am
Car shaking, engine warning light on, and failure to start can be caused by the following reasons: 1. The spark plugs fail to spark or spark poorly due to prolonged lack of replacement or installation issues. 2. Damage to the ignition coil of one cylinder, causing that cylinder to malfunction. 3. Internal short circuit in the fuel pump, preventing normal supply of low-pressure fuel, leading to engine shaking or stalling. 4. Air leakage in the engine intake system, causing engine shaking and triggering the engine fault light. 5. One of the engine cylinders lacks cylinder pressure due to poor sealing of the valve or piston rings stuck by carbon deposits, resulting in engine shaking.
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