What is the reason for the engine light in a newly purchased car?
2 Answers
Newly purchased car engine light is on because: When the ignition switch is turned on, the dashboard indicator lights will illuminate, which is the car system performing self-diagnosis. After a period of time, it will automatically turn off. If the fault light remains on, it indicates that there is a problem with the engine. If the engine fault light comes on while driving, it is likely due to poor combustion state in the engine, leading to issues such as engine knocking or carbon buildup. The impacts of engine failure include: 1. Deterioration of vehicle exhaust quality, causing severe environmental pollution; 2. Increased fuel consumption; 3. Rise in engine temperature, accelerating engine wear; 4. Severe engine oil burning; 5. Increased engine noise, affecting ride comfort.
It's really annoying when the engine light suddenly comes on in a new car. Last time this happened to me, I immediately went to the dealership to get it checked for peace of mind. The most common issue with new cars is fuel quality—try switching to a more reliable gas station. A loose fuel cap can also trigger false sensor alerts, so make sure it's tightened until you hear a click. During the break-in period, sensors are particularly sensitive and may alert if the exhaust system slightly exceeds standards. Battery drain during transportation can cause electrical recording errors, requiring specialized diagnostic tools to clear the codes. Additionally, aftermarket electronic devices causing voltage fluctuations might make the engine control unit act up and trigger warnings. It's advisable to check these simple possibilities first, as the likelihood of a serious issue in a new car is very low.
