What Causes the Abnormal Noise in Leiling Engine?
3 Answers
The causes of abnormal noise in Leiling engine may include: excessive clearance between piston and cylinder wall; excessively high engine oil viscosity; insufficient belt tension; excessive carbon buildup on valves or incorrect timing adjustment. It may also be related to individual usage conditions. Generally, engine abnormal noise issues can be repaired once the root cause is identified. It is recommended to contact the local 4S store for inspection and repair. The Leiling's body dimensions are 4640mm in length, 1780mm in width, and 1455mm in height, with a wheelbase of 2700mm. The Leiling adopts front-engine, front-wheel-drive layout, with MacPherson strut independent front suspension and double-wishbone independent rear suspension.
A few years ago when I was driving my Leiling, I encountered engine noise—a squeaking and creaking sound that startled me. The diagnosis showed it was due to a loose or worn-out belt. Older cars are prone to this issue because the belt drives the fan and alternator, and once it loosens, it starts making noise. If you hear the sound coming from the front of the engine, first try checking the belt tension—no professional tools needed, just press it by hand after parking to see if it lacks elasticity or has cracks. Don’t ignore it; if the belt snaps, it could lead to engine overheating or even a blown engine. Spending a little on a new belt is much cheaper than major repairs. During routine maintenance, remember to ask the mechanic to check the belt and bearings—common issues for older Leilings. If the noise persists, it’s best to go straight to the dealership for diagnosis. They can use a stethoscope to pinpoint the exact problem, avoiding DIY attempts that might worsen the issue.
As someone who frequently deals with cars, I've found that abnormal noises in the Leiling engine are mostly caused by valve knocking or bearing failure, especially noticeable during high-speed operation. You can pay attention to whether the noise changes during cold starts: if it only occurs during acceleration, it might be due to insufficient lubrication, indicating it's time to change the oil; if it's noisy at idle, it's more likely to be an exhaust leak or belt issue. Don't wait for it to worsen, as it can damage piston rings or crankshaft bearings. A simple DIY check is to inspect the oil level and color—oil that's too dark or overfilled needs attention. For a more professional approach, take it to a shop to scan for trouble codes with an OBD scanner, which can help pinpoint the issue faster. With proper maintenance, the Leiling's engine is actually quite durable, and abnormal noises are often caused by neglect.
