Engine Scraping Noise
Car Engine Makes Scraping Noise While Driving Helpful Information A scraping sound is typically created when metal is contacting metal during linear or rotational movement. Rotating objects are generally prone to scraping noises because they have close tolerances and are positioned near stationary objects. Some scrapping noises are easily fixed by re-positioning a particular brace or shield, while bearing failures need to be replaced. Easy step by step guide on how to repair an automotive engine scraping noises, this information pertains to most vehicles. Difficulty Scale: 4 of 10 Begin with the vehicle on flat ground, in park with the emergency brake "ON" and the engine "OFF". Step 1 - A bearing style of support pulley is used to keep tension on the serpentine belt, these bearings can fail causing a scraping noise which follows the engine speed. Serpentine Belt Tensioner Bearing Step 2 - A starter motor utilizes 12 volts to crank the engine ov...