Check engine light flashing and car shaking. Causes and potential solutions

The video overviews the critical issue of a flashing check engine light accompanied by car shaking, typically indicating a severe engine misfire. It explains the role of the CEL in the vehicle's onboard diagnostics system, outlines common causes of engine misfires (such as ignition system failures, fuel system issues, and sensor problems), and details diagnostic procedures including OBD-II scans and component tests. The video also offers potential solutions like replacing spark plugs or fixing vacuum leaks, emphasizing preventive measures such as regular maintenance and timely repairs to avoid major engine problems.