What Causes Engine Shaking at Low RPM?
1 Answers
Engine shaking at low RPM can be caused by the following reasons: 1. Dirty throttle body: Carbon deposits may absorb some fuel during cold starts. If the fuel doesn't completely enter the cylinder for combustion, it can lead to unstable idle and difficulty starting. 2. Slight lateral tilting of engine transmission: Due to the angle between the half-shaft axis and inner CV joint axis, the force application point continuously changes along the axial direction during CV joint rotation, causing vibration. 3. Ignition system malfunction: For ignition system issues, check spark plugs, ignition wires, and coils. Typically, leaking ignition wires or carbon-fouled spark plugs can cause shaking.