Can You Drive Normally with Engine Knock?
2 Answers
Engine knock prevents normal driving. The causes of engine knock include: 1. Carbon deposits: If the fuel in the engine does not burn completely, carbon deposits will form; 2. Overheating engine: Prolonged intense driving can cause the engine to overheat; 3. Poor fuel quality: Using low-quality fuel significantly reduces anti-knock properties, making the engine prone to knocking; 4. Ignition disorder: If the car's ignition system malfunctions, causing ignition to occur before the piston reaches the correct position, it will result in abnormal engine vibration.
Engine knocking is really something you can't ignore! Last time, my friend's Lavida had this issue - right after startup, the engine compartment was banging like a drum. He didn't take it seriously and drove another 300 km on the highway, only to break down completely at the service area. When the mechanics opened it up, the piston rings were cracked and the spark plug electrodes were melted. The mechanic said that during knocking, it's like someone's constantly hammering the cylinder walls from inside, and prolonged knocking can lead to connecting rod deformation or even bent valves. Now every time I start my car, I instinctively listen for any metallic knocking sounds - if I hear any, I shut it off immediately. Calling a tow truck is way cheaper than repairing an engine.
