What to Do About Engine Abnormal Noise?
2 Answers
For engine abnormal noise, it is recommended to go to a 4S shop or a professional auto repair shop for a detailed inspection first. If engine abnormal noise occurs during vehicle use, preliminary analysis can be conducted first. First, check the condition of the belt to see if there are fine cracks and whether the tension is normal. Then, check the engine water temperature gauge and the condition of the engine oil to determine if the abnormal engine operation is caused by abnormal water temperature, insufficient or deteriorated engine oil. Next, connect a car diagnostic tool via the OBD interface to check the sensor signals to see if there is an abnormal air-fuel ratio in the engine mixture. Inspect the spark plug electrode gap to see if the spark plugs are functioning normally. Possible causes of engine abnormal noise include: 1. The fuel octane rating used does not match the manufacturer's recommendation; 2. Abnormal engine temperature; 3. Abnormal air-fuel ratio in the engine mixture; 4. Excessive carbon deposits in the engine combustion chamber; 5. Abnormal ignition timing; 6. Engine oil cannot provide normal lubrication; 7. Inappropriate belt tension; 8. Crankcase ventilation leakage; 9. Aging engine mounts.
When the engine makes abnormal noises, my first reaction is not to panic. This could be due to various reasons, such as a loose belt, worn bearings, or insufficient oil. If I hear strange sounds while driving, I will gradually slow down and pull over, checking if any warning lights are illuminated on the dashboard. Next, I open the hood to listen to where the sound is coming from; if it's a squeaking noise, it might be a belt issue, so I gently push it to see if it's loose. If all else fails, I directly call the nearest auto repair shop. Abnormal noises shouldn't be ignored—last year, my friend's car had a similar issue, thinking it was minor, but the bearings were damaged, costing thousands in repairs. It's a good habit to regularly maintain the oil and belts, as these parts can easily make noise when they age. Remember, safety comes first—don't force the car to avoid damaging more components.
