Why Does the Engine Sound Like a Tractor?

[AbigailAnn]

Here are the reasons why the engine sounds like a tractor: 1. Dirty air filter: The air filter is designed to protect the engine and reduce wear. It is usually replaced every 10,000 kilometers or so. If not replaced in time, insufficient air intake can cause low idle speed, leading to abnormal engine noise. Simply replacing the filter can solve the problem. 2. Broken high-voltage wire: A broken high-voltage wire refers to a break in the wire core, which can affect ignition and cause abnormal engine noise. 3. Spark plug lifespan: Spark plugs have a limited lifespan. After 30,000 to 40,000 kilometers, their ignition efficiency significantly decreases, leading to abnormal engine noise. 4. Carbon deposits and oil sludge blockage: Over time, carbon deposits and oil sludge can accumulate in the throttle body, idle valve, and intake ports, causing poor air intake. This affects idle stability and results in abnormal engine noise.