What are the reasons for loud engine noise?
2 Answers
Reasons for loud engine noise include: 1. Exhaust pipe issues; 2. Damaged engine bearings; 3. Problems with engine valves. Car maintenance items include engine oil, three filters, spark plugs, transmission fluid, coolant, brake fluid, brake pads, and the battery. The replacement cycle for the battery is generally 40,000 kilometers, but its lifespan can be appropriately extended based on actual usage. The benefits of car maintenance are: 1. Ensuring the vehicle maintains excellent performance; 2. Improving vehicle efficiency and reducing wear on parts and tires; 3. Enhancing driving safety; 4. Preventing vehicle issues that could lead to hazards; 5. Reducing noise and environmental pollution; 6. Keeping the vehicle's appearance clean and preventing damage.
I've encountered the issue of increased engine noise many times, mainly related to mechanical component wear. For example, poor oil quality or infrequent oil changes can lead to louder friction sounds between parts, resulting in a buzzing noise. During repairs, I've found that cracked or loose exhaust manifolds can cause a gurgling sound due to exhaust system leaks. Also, worn engine mounts can create rattling noises when the car is in motion. A loose timing chain may produce a ticking sound. These are all internal issues, so I recommend first checking the oil condition and seeing if the filter is clogged, replacing parts if necessary. Long-term neglect can lead to progressively louder noises, affecting driving comfort, so regular vehicle maintenance is highly advisable.
