How to Solve the Issue When the Car Engine Warning Light Comes On?
2 Answers
When the engine warning light comes on, you can follow these steps to address the issue: First, check if the engine is running normally and whether there are issues such as shaking or emitting black smoke. If these problems exist, try not to start the engine again. It is especially important to note that you must not start the engine if the red light is on. If the engine can be started, turn it off and wait for 5-10 minutes. Then, without pressing the brake, press the start button once or turn the car key halfway to the 'on' position without depressing the clutch. The car will perform a self-check after powering on. Wait for 5-10 seconds and observe whether the warning light on the dashboard turns off. If the warning light does not turn off, visit a service station as soon as possible to identify the cause. The service station can use a portable diagnostic tool to read the fault code, obtain fault information, and perform targeted repairs. The engine warning light is an icon resembling a water tap. It comes in two colors: yellow and red. Yellow indicates a warning, while red means prohibition. When the yellow warning light is on, it means some system parameters in the car may have exceeded the set range. The car can still be driven, but certain functions may be limited. When the red warning light is on, the car must be stopped immediately, the engine turned off, and driving must not continue. The fault must be checked. Common causes for the engine warning light to come on include: sensor failure, fuel quality issues, poor mixture combustion, turbocharging problems, intake issues, exhaust problems, and anti-theft system failures.
Last time when my engine warning light came on, I went straight to the repair shop. The mechanic said this warning light shouldn't be taken lightly. First, they used an OBD scanner to read the trouble codes - common causes include a faulty oxygen sensor or clogged catalytic converter. Using poor quality fuel or wrong gasoline grade can also trigger it. If the car drives normally otherwise, check if the fuel cap is tightened properly. That was actually the issue with my car last time - the loose cap caused the light to come on. The mechanic mentioned a dirty air filter or spark plug issues could also trigger the warning, and advised against DIY fixes, especially for turbocharged vehicles. Any problems should be addressed promptly to avoid engine damage and increased fuel consumption. In urgent cases, it's best to visit a professional repair shop as they have complete diagnostic equipment for quick troubleshooting.
