Reasons for Car Shaking and Engine Warning Light Flashing Temporarily Then Turning Off

1 Answers
MollyLee
07/30/25 3:27am
When the air-fuel mixture in the engine changes, the exhaust emissions will exceed standards. At this point, the control unit will record a fault code and illuminate the warning light to alert the driver. If you feel severe engine shaking in the cabin, it indicates that one or multiple cylinders are not functioning properly. The possible causes are as follows: 1. Spark plugs not replaced for a long time: Due to prolonged use or installation issues, spark plugs may fail to spark or spark poorly. 2. Ignition coil damage: If the ignition coil of one cylinder is damaged, that cylinder cannot operate normally. 3. Internal short circuit in fuel pump: An internal short circuit in the fuel pump can prevent normal supply of low-pressure fuel, causing engine shaking or stalling.
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