Why Is There an Electric Current Sound When Pressing the Accelerator?
2 Answers
The main reasons for hearing an electric current sound when pressing the accelerator while driving are as follows: 1. Abnormal noise from the fuel pump motor: When there is internal wear or impurities in the fuel pump motor, it can produce abnormal noise as you press the accelerator, requiring prompt replacement of the fuel pump. 2. Throttle body noise: The throttle body uses an electronic throttle, and the motor controls the opening and closing of the valve. If the motor gears are worn, insufficiently engaged, or have excessive carbon deposits and sludge, it can cause the throttle body to make noise. The throttle body can be cleaned, and if the motor is damaged, the throttle body needs to be disassembled to replace the motor. 3. Poor lubrication of the accelerator pedal bearing: Poor lubrication of the accelerator pedal bearing can produce noise. You can apply grease to the bearing for lubrication. 4. Damaged clutch release bearing: A damaged bearing can cause the clutch disc to not fully disengage, resulting in abnormal noise. The clutch should be promptly removed to replace the release bearing.
I've been repairing cars for over a decade, and the electric current sound when stepping on the accelerator is quite common, especially in vehicles with electronic throttle systems. When you press the pedal, the sensor transmits signals through wires to the control module to regulate the throttle opening, and the flow of current produces a slight buzzing sound. If the sound is soft and uniform, it's usually normal. However, if the noise becomes louder or harsh, it could be due to loose or aging wiring, sensor malfunctions causing interference, or even the sound of an electric motor working under high load. It's advisable to check if the throttle area wiring harness is securely fastened. I've seen many car owners ignore this issue, leading to sluggish throttle response and safety concerns. Daily driving in varying humidity levels can exacerbate the noise, making regular maintenance and circuit inspections crucial to prevent potential hazards.
