Why is there an electric current sound when stepping on the car accelerator?
2 Answers
It is normal for a car to produce an electric current sound when stepping on the accelerator. If the sound is too loud, you can go to a 4S shop for inspection and repair. The electronic throttle uses a wiring harness to replace the cable or lever, and the other side of the throttle is equipped with a miniature generator, which uses an electric motor to control the throttle opening. Traditional internal combustion engine throttle control technology lacks precision, and the emergence of electronic throttles has solved this problem. The components of an electronic throttle include a pedal displacement sensor, an electronic control unit, a data bus, a throttle actuator, a servo motor, and an accelerator pedal. The electronic throttle control system mainly has two functions: traction control system and speed control system.
When stepping on the accelerator, there's an electric current sound. From my driving experience, this is quite common and mostly caused by faulty electronic components. It could be due to aging or poor contact of the sensor under the accelerator pedal, creating noise when current flows through; or the motor of the electronic throttle might be worn out, causing squeaking sounds when vibrating heavily during acceleration. Another possibility is aged or short-circuited wiring, especially in older cars or after exposure to rain. I encountered this once before, thought it was minor and ignored it, but ended up with sluggish throttle response while driving, nearly causing an accident. My advice is not to delay—get it checked at a professional repair shop as soon as possible, and have the entire throttle system circuitry inspected. Safety first. Regularly cleaning dust around the pedal can also help prevent this issue.
