What are the reasons for severe shaking in a three-cylinder engine?
1 Answers
The reasons for severe shaking in a three-cylinder engine are as follows: 1. Dirty air filter: The air filter is designed to protect the engine and reduce wear. It is generally replaced every 10,000 kilometers. If not replaced in time, insufficient air intake can cause low idle speed, leading to engine shaking. 2. Spark plug lifespan: Spark plugs have a limited lifespan. After exceeding 30,000 to 40,000 kilometers, their ignition efficiency significantly decreases, which can affect ignition. Low idle speed: The engine's idle speed is preset in the computer. When the RPM drops below a certain range, the car's computer will automatically adjust it. 3. Abnormal water temperature: The engine operates within a normal temperature range. High water temperature can cause early ignition timing, changes in the air-fuel mixture, thinning of engine oil viscosity, and reduced lubrication performance. Common causes of shaking include insufficient coolant, a stuck thermostat, a non-functioning fan, or inaccurate temperature control switch settings. 4. Clogged fuel injectors: The fuel injectors in fuel-injected cars are critical components for fuel delivery and have a long lifespan, often reaching hundreds of thousands of kilometers. However, deposits in gasoline can clog the injector nozzles, causing inconsistent fuel delivery among injectors and uneven cylinder operation, leading to engine shaking. 5. Carbon deposits and oil sludge blockages: Over time, carbon deposits and oil sludge can accumulate in the throttle body, idle valve, and intake ports, obstructing airflow and affecting idle stability, resulting in shaking.
