What Causes the Buzzing Noise When Driving a Car?
2 Answers
Car driving with a buzzing noise is caused by: excessive carbon deposits in the engine, poor gasoline filtration, low-quality gasoline, aging spark plugs, engine malfunction, or cylinder failure. Solutions to the buzzing noise when driving a car include: 1. Replace the engine oil; 2. Clean carbon deposits from the engine; 3. Replace the spark plugs; 4. Conduct a comprehensive inspection and repair of the vehicle. The working principle of the engine: 1. Mix air and gasoline in a certain ratio to form a combustible mixture; 2. The intake stroke draws the mixture into the cylinder, where it is compressed, ignited, and burned to generate thermal energy; 3. The high-temperature and high-pressure gas acts on the top of the piston, driving the piston to perform reciprocating linear motion, and the mechanical energy is output through the connecting rod, crankshaft, and flywheel mechanism.
I recently noticed a humming noise while driving, especially at high speeds, which is extremely annoying. The cause is likely tire-related issues, such as uneven wear or unbalanced wheels, making the rotation uneven and producing noise; it could also be worn wheel bearings, particularly noticeable when turning; or perhaps the engine belt is loose and slipping, or the fan blades are misaligned. Previously, I found the tires were worn out during an inspection, and after replacing them, it became much quieter with no more humming. It's advisable to pay regular attention to the car's condition, such as getting periodic wheel alignment checks, maintaining correct tire pressure, and not letting small issues escalate into major problems. Otherwise, driving becomes noisy and unsafe, and repairs can be expensive.