What are the reasons for the loud engine noise in the Yuexiang V3?
2 Answers
The reasons for the loud engine noise in the Yuexiang V3 include cold start, excessively high oil viscosity, and leakage in the intake and exhaust pipes. Cold start: When the car has been parked for a long time and then started, the lubricating oil has mostly flowed to the oil pan. During a cold start, the oil pump cannot immediately build up oil pressure, causing the engine to vibrate violently and produce noise. This noise is normal, and the engine will return to normal after running for a while. Excessively high oil viscosity: Engine oil is a crucial component for engine lubrication. When the oil viscosity is too high, it can lead to operational issues in the engine, reducing lubrication effectiveness and causing friction during operation, which results in noise. In this case, simply changing the engine oil will resolve the issue. Leakage in the intake and exhaust pipes: After starting the engine, during intake and exhaust, gas may leak from the damaged areas, causing vibrations and noise. In such situations, it is necessary to inspect the intake and exhaust pipes and replace them if needed.
As an experienced driver, I often notice that the engine noise in the Yuexiang V3 is quite common, mainly due to oil issues. For example, if the oil is too old or has high viscosity, insufficient lubrication can cause increased friction between parts; or if the belt is loose or slipping, it can produce a squeaking sound; also, internal wear, such as damaged pistons or bearings, can create a knocking noise. My advice is to first check the oil dipstick yourself—if it's black and dirty, it's time for a change. If the belt is aging, try pulling it tight by hand. Don’t overlook carbon buildup either; driving slowly in the city for long periods can lead to excessive engine carbon deposits, making the noise worse. If a simple check doesn’t solve the problem, take it to a professional repair shop as soon as possible to avoid minor issues turning into major engine replacements, which could save you a lot of money.
