What causes the loud engine noise in Xiali N5?
2 Answers
There are several reasons for the loud engine noise in Xiali N5: Excessive carbon buildup: Excessive carbon buildup in the engine is a significant cause, primarily due to the use of inappropriate fuel. Solution: It is recommended to add a certain amount of fuel cleaner during refueling. After cleaning, it's best to drive at high speed for a while, which helps increase exhaust flow and allows stronger airflow to carry out larger carbon particles. Oxygen sensor damage: The oxygen sensor mainly monitors the air-fuel ratio in the engine. Once damaged, it will cause an imbalance in the air-fuel ratio, leading to a sudden increase in fuel consumption. Solution: Check the oxygen sensor as it is an internal control unit of the car, and the oxygen sensor should be replaced.
Driving a Xiali N5 with a loud engine noise is really annoying, and the most common source is the belt. After years of use, the belt can become loose or worn, causing constant squeaking and increasing noise. Insufficient engine oil is also critical, as poor lubrication leads to louder friction between components. Carbon buildup shouldn’t be ignored either—long-term low-speed driving causes carbon deposits, altering the compression ratio and making the engine rumble. When the engine is warm, listen for the source of the noise: if it gets louder with acceleration, it might be an oil issue; if it’s a constant noise, consider the belt. My advice is to regularly check belt tension, change the oil on time, and reduce carbon buildup. Ignoring these issues can lead to higher fuel consumption, poor performance, and even severe bearing damage, doubling repair costs. Head to a professional auto repair shop for a thorough inspection to avoid bigger troubles.
