What Causes the Zizi Sound During Cold Start of Teana?

[LaAndres]

Teana makes a zizi sound during cold start because the car has not been moved for a period of time, the engine belt tension is abnormal, or the belt is too dirty. The car has not been moved for a period of time: First, if the car has not been moved for a period of time, the engine oil will return to the oil pan, meaning the top of the engine (the valve chamber) will have less oil. Since the valves lack the sealing and lubrication provided by the oil, you may hear a zizi sound from the bottom of the car when starting it. This is a normal situation. Abnormal engine belt tension: However, apart from the normal situation, a persistent zizi sound after starting the car is most likely due to an issue with the engine belt. First, check the tension of the engine belt. You can try pinching the belt with your fingers and twisting it. Note that this operation should be performed when the engine is cool. The twist angle should generally be below 90 degrees; otherwise, an adjustment is needed. Dirty belt: The abnormal noise from the engine belt may be due to the belt being too dirty. Cleaning it with water or applying some lubricant can eliminate the noise. However, whether this solution is suitable for all car models requires further analysis.