What Causes the Abnormal Noise in Geely Vision's Engine?
4 Answers
The causes and solutions for engine abnormal noise are as follows: Insufficient engine oil: This leads to inadequate lubrication of various components, resulting in wear sounds. Adding engine oil can resolve the issue. Poor fuel combustion: Low injection pressure, injector dripping, poor fuel atomization, and delayed fuel supply timing can all cause poor fuel combustion, leading to knocking. The injector should be removed for inspection and adjustment, and the fuel supply timing should be adjusted. If necessary, replace with new parts to meet specifications. Premature fuel supply: If the injector starts injecting fuel before the piston reaches the designated position, it causes early fuel combustion, resulting in rhythmic sounds from high-pressure gas impacting the piston in the cylinder. Reducing the throttle makes the knocking obvious. Adjusting the fuel supply advance angle can solve the problem.
I've handled many similar cases, and the most common cause of engine noise in Geely Vision is belt system issues. For example, aging or loose drive belts can produce squeaking or rubbing sounds, especially noticeable during cold starts. Secondly, improperly secured engine components, such as loose fans or water pumps, can also create noise, sounding like a tapping sound. Sometimes, insufficient or poor-quality engine oil leads to inadequate lubrication of internal parts, causing worn engine bearings to produce a humming noise. Additionally, ignition system failures, such as mismatched spark plugs, can cause knocking sounds resembling a clicking or tapping noise. These minor issues, if not addressed promptly, may escalate into engine damage. I recommend visiting a professional repair shop as soon as possible for an inspection. The cost is affordable but ensures safety. I've seen too many car owners delay repairs and end up spending much more later.
As an experienced car enthusiast, I've noticed that engine noises can stem from various sources. It might relate to combustion issues, such as improper fuel mixture ratios causing valve noises; or mechanical component problems, like worn connecting rod bearings producing a knocking sound, or loose piston pins creating sharp noises. Faulty belt tensioners are also a common culprit, especially prevalent in Geely Vision models. Additionally, lubrication system failures, such as poor oil pump performance or insufficient oil, can increase metal component friction. I recommend a simple self-check: listen for the noise location upon startup – bottom-end sounds often indicate oil issues, while top-end noises usually point to belt problems. For safety, avoid DIY disassembly and have a technician diagnose it for a permanent solution.
My Geely Vision also made strange noises before, and I found out it was due to low engine oil. After topping it up, the noise disappeared. Pay attention to regular maintenance intervals when driving frequently, as delayed replacement of belts and filters can accumulate problems. Another time, the fan screws were loose, and after repair, it became quiet again. The strange noises may sound like squeaks or rattles, but don’t panic—just address them promptly to prevent minor issues from escalating. Regular checks of engine oil and coolant can help reduce such troubles.
