What Causes Abnormal Noise When Pressing the Accelerator?
2 Answers
Abnormal noise from the fuel pump motor; abnormal noise from the throttle; poor lubrication of the accelerator pedal bearing causing noise; damage to the clutch release bearing, leading to incomplete separation of the clutch disc and resulting in noise. Below are the specific reasons: Abnormal noise from the fuel pump motor: When there is internal wear or impurities in the fuel pump motor, abnormal noise occurs when pressing the accelerator. This issue requires replacing the fuel pump. Abnormal noise from the throttle: Modern throttles use electronic throttles, where the motor controls the opening and closing of the valve. When the motor gears wear out, insufficient engagement causes noise. Excessive carbon deposits and sludge in the throttle can also lead to abnormal noise. The throttle can be cleaned, and if the motor is damaged, the throttle needs to be removed to replace the servo motor. Poor bearing lubrication: You can apply grease to the bearing yourself for lubrication. Damage to the clutch release bearing: Causes incomplete separation of the clutch disc, resulting in noise. Remove the clutch to replace the release bearing.
The car makes abnormal noises when stepping on the accelerator. I've experienced similar situations before. It might sound like the belt is loose or worn out, producing a squeaking noise, especially during acceleration. Alternatively, a clogged air filter could cause insufficient engine suction, increasing the load and resulting in noise. Once, while repairing my car, I found that the exhaust pipe joint was loose, and the sound of air leakage became louder. It's advisable to first stop the car and inspect the components under the engine hood to locate the source of the noise. Paying attention to these details during routine maintenance can prevent many unexpected issues. Safe driving is crucial—don't wait for minor problems to turn into major repairs.
