How to Solve Excessive Engine Noise During Acceleration?
2 Answers
Here are the specific causes and solutions for excessive engine noise during acceleration: 1. Dirty throttle valve: When encountering loud engine noise during acceleration, the throttle valve should be considered first. If the throttle valve is dirty, this situation may occur, and cleaning the throttle valve once can be considered. 2. Intake manifold leakage: Unwanted air, gasoline vapor, or exhaust gas entering the intake manifold can cause the air-fuel mixture to be too rich or too lean, leading to loud engine noise during acceleration; consider sending it to a 4S shop for inspection and repair. 3. Abnormal spark plugs: Problems with the ignition coil or spark plugs in the ignition system may also cause such a situation. Check if the spark plugs are clogged, and timely replacement can improve this situation. 4. Damaged oxygen sensor: The oxygen sensor in the intake and exhaust system may sometimes be damaged, causing inaccurate intake data and also resulting in loud engine noise during acceleration, requiring it to be sent to a 4S shop for inspection and repair.
If the engine noise increases during acceleration, it may be due to an exhaust pipe leak or a belt issue. If the joints of the exhaust pipe are rusted and loose, it will produce a puffing sound while driving, especially noticeable during acceleration. Belts, like those for the alternator or water pump, can cause squealing noises when you press the accelerator if they’ve aged and hardened—definitely annoying. I always remind my friends to check under the car for holes in the exhaust pipe or open the hood to inspect the belts for cracks. It’s best to replace them promptly to avoid more expensive repairs. Additionally, using higher-quality engine oil helps, as poor-quality oil provides insufficient lubrication, increasing engine friction and making the noise louder. In short, don’t ignore it and keep driving, as it can damage the engine.
