What are the symptoms before engine cylinder scuffing occurs?
2 Answers
Symptoms before engine cylinder scuffing occurs include: 1. The vehicle may experience difficulty while driving; 2. The engine's water temperature rises; 3. The engine speed becomes unstable or may cause the vehicle to stall. The causes of engine cylinder scuffing are: 1. The engine cooling system leaks or runs out of water, leading to engine overheating due to untimely replenishment; 2. The engine oil level is too low, resulting in the loss of cylinder sealing and lubrication function; 3. Piston ring breakage, which scratches the cylinder wall; 4. Piston pin circlip detachment, leading to cylinder wall scratches; 5. Piston rings getting stuck in the ring groove due to carbon deposits, losing their sealing effect; 6. Piston pin protrusion, causing cylinder wall scratches; 7. Foreign objects entering the cylinder; 8. The clearance between the piston and cylinder wall being too small.
My old car had similar issues before. Before the cylinder scoring occurred, I noticed the engine noise became significantly louder, with a constant buzzing sound like metal knocking inside. The temperature gauge frequently shot up to the red zone, especially when climbing hills with AC on during summer—I had to pull over to let the engine cool down. At idle, the RPM was unstable, making the car jerk uncomfortably. Acceleration felt sluggish too; stepping on the gas pedal was like stepping on cotton—the response was painfully slow. Later inspection revealed it was caused by rapid oil leakage leading to insufficient lubrication. If left untreated, these symptoms could have completely destroyed the engine, with repair costs being astronomical. Since then, I’ve made it a habit to check the oil dipstick and coolant temperature gauge every 2-3 months. Catching small issues early saves big money—don’t let your beloved car develop major troubles.
