What Causes Engine Shaking During Warm-Up?

[DeAlyssa]

Reasons for engine shaking during warm-up: 1. Idle air passage blockage, malfunctioning idle control system, weak spark in individual cylinder spark plugs, poor valve sealing, intake manifold leaks, incorrect ignition timing (too early or too late), improper idle adjustment, etc.; 2. For unstable engine idle, first adjust the idle speed and check whether the idle jet and idle air passage are blocked. If the jets are clogged, clean them with gasoline or acetone and blow through with compressed air. An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. The term engine can refer to both the power generation device and the entire machine including the power unit.