What Causes Car Engine Shaking?
1 Answers
Car engine shaking can be caused by a dirty air filter, shortened spark plug lifespan, clogged or carbon-fouled fuel injectors, and oil sludge blockages. Solutions: Dirty air filter: The air filter is designed to protect the engine and reduce wear. It should generally be replaced every 10,000 kilometers. If not replaced in time, insufficient air intake can cause low idle speed and engine shaking. Simply replacing the filter element can solve this problem. Shortened spark plug lifespan: After 30,000-40,000 kilometers, spark plugs' ignition efficiency significantly decreases and may affect ignition. This is the most common issue, and replacing all spark plugs can resolve it. Clogged fuel injectors: The fuel injectors in electronic fuel injection vehicles are key components for fuel delivery and have a long lifespan, potentially reaching hundreds of thousands of kilometers. However, gums in gasoline can clog the injector nozzles, causing inconsistent fuel delivery among injectors and uneven cylinder operation, leading to engine shaking. The solution is to remove and clean them. Carbon deposits and oil sludge blockages: Over time, the throttle body, idle valve, and intake ports can accumulate carbon deposits and oil sludge, restricting airflow and affecting idle stability, causing shaking. Inspecting and cleaning these areas with a cleaning agent can solve the problem without disassembly.
