Why does the engine sound like a tractor?
2 Answers
The reasons why the engine sounds like a tractor are: 1. Severe carbon deposits in the engine combustion chamber; 2. Use of poor-quality gasoline with poor anti-knock performance; 3. Damaged valves; 4. Insufficient oil viscosity, leading to poor lubrication; 5. Internal engine failure. An engine is a machine that can convert other forms of energy into mechanical energy, which is divided into: 1. Internal combustion engine: fuel burns inside the engine; 2. External combustion engine: fuel burns outside the engine; 3. Gas turbine: combustion produces high-pressure gas, which is used to drive the turbine blades to rotate; 4. Jet engine: an engine that directly generates reactive thrust by the high-speed airflow ejected from the nozzle.
I've encountered this situation several times. Usually, when the engine sounds like a tractor, it's because the drive belt is loose or slipping, especially during cold starts when the noise is particularly noticeable. Worn-out belts or insufficient tension can cause a screeching noise, or it could be due to a faulty bearing in the idler or tensioner pulley. Additionally, an air intake leak can produce similar abnormal sounds, indicating that a seal or hose is broken and needs replacement. Sometimes, insufficient engine oil or low oil pressure increases internal friction, making the engine sound louder and rougher. I recommend stopping the car immediately to check the belt condition and oil level if you hear such noises. If the belt shows cracks, replace it promptly. Ignoring this issue for too long may lead to more severe engine damage, such as a timing belt break, resulting in skyrocketing repair costs.
