Why does the engine shake at 2000 RPM but stops shaking after passing that point?
2 Answers
Resonance zone, which is a normal phenomenon. You can also inquire at a 4S shop. Below is an introduction about engines: 1. Introduction: An engine (Engine) is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. Engines can be used as power generation devices or refer to the entire machine including the power device (e.g., gasoline engines, aircraft engines). The engine was first born in the UK, so the concept of the engine also originates from English, and its original meaning refers to that kind of "mechanical device that generates power." 2. Classification: External combustion engine: An external combustion engine refers to an engine where the fuel burns outside the engine; Internal combustion engine: The fuel burns inside it; Gas turbine: The working characteristic of this engine is that combustion produces high-pressure gas, and the high-pressure gas is used to push the blades of the gas turbine to rotate, thereby outputting power; Jet engine: Refers to an engine that directly generates reactive thrust by the high-speed airflow ejected from the nozzle.
I've also experienced engine shaking at 2000 RPM that later returned to normal while driving, which is usually caused by resonance points. The engine and vehicle body vibrate at the same frequency at certain RPMs, amplifying the vibrations—this often happens when engine mounts age or chassis bolts loosen. Check the engine mounts for cracks or deformation, as rubber components can deform over time and lose their cushioning effect. Additionally, unbalanced tires or drive shafts can worsen vibrations at specific RPM points. I recommend paying attention to any unusual sounds; if shaking is accompanied by strange noises, take your car to a repair shop immediately to inspect the mounts and fasteners. When driving, try to avoid cruising at 2000 RPM—accelerate slightly to quickly pass that point. Minor resonance is usually harmless, but if it happens frequently, get it repaired to prevent damage to other components. Though chassis issues may seem minor, they affect driving comfort.
