What to Do When the Car Makes Abnormal Noise and Fails to Start?

[Molly]

Solutions for abnormal noise during car startup and failure to start are as follows: 1. Check the battery status: Difficulty in starting the car is mostly caused by a weak battery or an expired battery lifespan. When the battery is low on power, the car's starting speed is weak, and you may only hear a clicking sound. Upon further attempts, the clicking sound may gradually turn into a hissing sound. Avoid continuous ignition attempts to prevent the battery from being completely drained. 2. Use the appropriate engine oil: As the temperature drops, the viscosity of the engine oil increases, making it harder for the oil to flow, which in turn increases engine resistance. If starting is difficult, check whether the engine oil meets the required specifications. 3. Replace the spark plugs in time: After years of use, spark plugs are prone to issues such as carbon buildup, leakage, excessive gap, and erosion, which can make it difficult to start the car, whether cold or even when the engine is warm. Often, multiple ignition attempts are needed, so timely replacement is necessary.