What Causes the Squeaking Sound When Accelerating a Car?
2 Answers
The reasons for abnormal sounds when accelerating a car are as follows: 1. Loose dashboard or console: The engine needs to intake a large amount of air during operation. If the air is not filtered, the suspended dust in the air will be sucked into the cylinder, accelerating the wear of the piston group and cylinder; larger particles entering between the piston and cylinder can cause severe "cylinder scoring." The air filter is installed in front of the carburetor or intake pipe to filter out dust and sand particles from the air, ensuring sufficient and clean air enters the cylinder. 2. Clutch malfunction: Additionally, you can try pulling out the oil dipstick and checking if there is any abnormal sound when accelerating. If there isn't, it might be a clutch issue. The turbocharger generates compressed air flow noise during operation, and the engine noise increases when the RPM is high or the accelerator pedal is pressed deeply; when accelerating, press the pedal gently, not all the way down, as pressing it suddenly to the bottom can cause this abnormal sound.
Last month, I also encountered a squeaking noise when accelerating my car, which turned out to be caused by a loose or worn alternator belt. This sound is particularly noticeable during acceleration because the belt slips on the pulley. If left unaddressed, the belt could break, leading to sudden engine stalling or the battery not charging, which is quite dangerous. Additionally, if the belt tensioner is aging or there is dust in the belt grooves, it can exacerbate the squeaking noise. I recommend checking the belt's condition as soon as possible—you can press it by hand to see if it's loose or take it to a mechanic for inspection. Regular attention to belt maintenance can prevent a lot of trouble.
