What Causes the Engine Light to Illuminate in a Car?
2 Answers
The reasons for the engine light illuminating in a car: 1. Poor combustion state: Inaccurate coordination between various components of the engine leads to poor combustion, causing the engine light to illuminate; 2. Poor fuel quality or unclean engine cylinder interiors, severe carbon buildup can also trigger the engine warning light. Precautions for engine maintenance: 1. Antifreeze: Car antifreeze needs timely inspection in winter, especially in northern regions where temperatures are lower. Using ordinary water instead of antifreeze can easily lead to freezing. Tap water contains many impurities, and after prolonged use, scale can form, blocking pipes and potentially causing the engine to overheat; 2. Engine oil: Car engine oil is essential for daily maintenance. Using inferior oil can result in insufficient lubrication, causing abnormal engine wear and affecting the engine's normal performance.
When the engine light comes on, I always think of some common issues first. I remember the last time my car had this problem, it was due to a faulty oxygen sensor. If that part gets dirty or damaged, the light will illuminate. It could also be caused by worn-out spark plugs, resulting in poor ignition and rough engine performance. Or perhaps there's an issue with the fuel pump, leading to insufficient fuel supply and sluggish driving. Don't overlook clogged fuel lines—a dirty fuel filter can also trigger the warning light. I usually check it myself first by turning the key off and restarting the engine. If the light remains on, I'll use an OBD scanner to read the trouble codes. However, for safety reasons, it's best not to push your luck—get it checked by a professional promptly. After all, the engine is the heart of the car. If it fails and leaves you stranded on the road, that would be a real hassle. I recommend paying attention to these details during routine maintenance to avoid unexpected breakdowns.
