What Causes the Engine Malfunction Light to Flash Suddenly?
2 Answers
When the vehicle's power is turned on but the engine is not yet started, various malfunction indicator lights on the dashboard—including those for the engine, coolant temperature, battery, and airbag—will illuminate simultaneously. These lights will automatically turn off once the vehicle is started, which is part of the vehicle's self-diagnostic function and is considered normal. Three scenarios after the engine malfunction light flashes: Vehicle fails to start: This could be caused by a faulty fuel pump or ignition components. In this case, it is advisable to call for roadside assistance immediately. Malfunction light remains on: If the vehicle drives normally without any noticeable issues, the problem might be a faulty sensor. You can continue driving temporarily, but it is recommended to drive at low to moderate speeds and head to a repair shop as soon as possible. Engine malfunction light illuminates: If the vehicle can still be driven but exhibits severe shaking, lack of power during acceleration, or other concerning symptoms, it is best to pull over safely and call for emergency assistance.
That time I was driving on the highway when the engine warning light suddenly flashed a few times, making me nervous. I slowed down and pulled over. After consulting a technician friend, I learned it might be an engine misfire—meaning one of the cylinders failed to ignite properly. Common causes include worn spark plugs, aging ignition coils, or clogged fuel injectors. A flashing light indicates a serious issue, and delaying repairs could damage the catalytic converter, leading to costlier fixes. Now, I regularly inspect these components and use high-quality fuel to avoid potential problems. Safety reminder: If the light flashes, don’t push it—slow down, pull over, check the manual, or visit a professional shop to scan for error codes to prevent a breakdown. This experience taught me the importance of preventive maintenance.
