Why does the car make a scraping sound when turning?

1 Answers
StGemma
07/29/25 7:18pm
The reason for the scraping sound when the car is turning is due to wear and failure of the outer CV joint of the drive shaft. Here are the relevant details: 1. Constant Velocity Joint: Commonly known as the CV joint, it consists of an inner joint and an outer joint. It serves as the rotating shaft that transmits power and ensures smooth power delivery during steering. Its failure can be diagnosed by methods like sudden acceleration and sharp turns. For instance, if you hear a metallic 'clicking' sound during sharp turns, it usually indicates damage to the outer CV joint. 2. Additional Information: Some car models use hydraulic power steering. When the steering wheel is turned to its limit, the hydraulic power pump operates under high load, which can produce noise. This is a normal phenomenon. It is recommended that drivers avoid frequently turning the steering wheel to its limit, as this can affect the lifespan of the power pump.
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