What Causes a Whistling Sound When Pressing the Accelerator in a Car?

1 Answers
Snow
07/30/25 9:52am
The sound diminishes or disappears, which is the noise caused by axial movement of the crankshaft. The reasons are as follows: 1. Excessive engine carbon deposits: Mainly due to the use of unsuitable fuel. It is recommended to add a certain amount of cleaning agent when refueling, and after cleaning, it is best to drive at high speed for a while, which helps increase exhaust volume and allows stronger airflow to carry out larger carbon deposit particles. 2. Damaged oxygen sensor: As an internal control unit of the car, the oxygen sensor mainly monitors the fuel-air ratio of the engine. Once damaged, it will cause an imbalance in the engine's fuel-air ratio, and fuel consumption will definitely increase suddenly.
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