What Causes Abnormal Noise When Accelerating?
2 Answers
Reasons for abnormal noise when accelerating: Excessive clearance in components like the drive shaft, poor lubrication, or improper assembly during maintenance can lead to high torque output and generate noise due to friction. Additional information: 1. Various vibrations and noises occur in different mechanisms of a car during operation, which do not necessarily indicate a fault. 2. Distinguish between normal and abnormal noises. Normal noises include vibrations from system components, gear impact sounds during shifting, intake and exhaust sounds, and gear meshing noise. 3. The impact of abnormal noises on car performance can be categorized as minor, moderate, or severe. Minor noises include sparking from high-voltage electrical leakage or slight looseness in rolling bearings.
Last time when I pressed the accelerator, I heard a strange creaking noise and thought it was a major engine issue. I rushed to the repair shop, and the mechanic found it was caused by the aging and slipping of the drive belt. When accelerating, the engine load increases, causing the belt to rub and produce abnormal sounds. Replacing a new belt only costs a few hundred bucks; otherwise, a broken belt could lead to bigger trouble. I also learned about other possible causes, such as bearing wear which becomes noticeable when turning, or a loose exhaust pipe. My advice is to stop immediately and listen for the sound source. If it's a high-pitched noise, check the belt; if it's a low rumble, it might be an engine component issue. Don’t delay—small problems can turn into major failures if ignored. Having these areas checked during regular maintenance can save you a lot of hassle.
