What Causes the Buzzing Sound When Accelerating the Engine?
3 Answers
It is because the engine oil has not fully lubricated all parts of the engine. After running for a period of time, the new engine oil can evenly lubricate all parts of the engine. It could also be due to severe wear and tear, followed by cleaning the internal parts of the engine. Below are the relevant explanations: 1. Engine system malfunction: Normally, a car operates smoothly and quietly, but when there is a malfunction in the fuel system or engine system, it can cause abnormal noises from the engine during acceleration. 2. Fuel line blockage: The fuel line blockage may be caused by the use of poor-quality fuel, requiring a switch to high-quality fuel. Generally, stepping hard on the accelerator can cause a large amount of fuel to spray out, providing power to the engine, but this should not be done frequently over the long term.
As an experienced car repairer, I've dealt with similar issues. The buzzing sound during car acceleration is commonly caused by a loose or worn engine belt system. The belt drives accessories like the fan and alternator; if it's too loose or lacks lubrication, it can vibrate and produce that buzzing noise during acceleration. Aging water pump bearings or tensioner pulley bearings are also common culprits, as worn bearings cause friction noise due to uneven rotation. Additionally, if the exhaust system has cracks or is loose, it can vibrate and make noise during acceleration. Ignoring these issues can lead to more serious problems, such as belt breakage causing engine overheating. I recommend regularly checking the belt's condition and tension, performing a simple visual inspection under the hood for abnormalities, or getting it repaired early to avoid additional damage. This habit can extend your vehicle's lifespan and make driving more worry-free.
I've been driving for over a decade and often encounter humming noises during acceleration. Most of the time it's a belt issue - once my car's loose belt made a buzzing sound like bees during acceleration. I tried tightening it myself, but the belt was too worn and replacing it solved the problem. Exhaust system leaks can also cause vibration noises. Ignoring these sounds affects driving comfort and may hide other faults. As an experienced driver, I make sure to regularly check belts and keep air filters clean to prevent trouble. Fixing minor issues promptly saves money and hassle later - I've learned this through hard experience.
