What are the solutions for excessive engine noise?

[MacKathryn]

Here are the detailed causes and solutions for excessive engine noise: 1. The car has been driven for too many years with excessive wear, causing excessive clearance in the transmission system and resulting in vibration and abnormal noise. Solution: Perform a comprehensive overhaul or scrap the vehicle. 2. The transmission V-belt is too loose, causing fluttering or slipping and producing sharp noise. Solution: Adjust the tightness of the transmission V-belt. 3. Excessive carbon deposits in the engine cylinders lead to poor combustion, producing a noise similar to that of a tractor. Solution: Clean the carbon deposits in the cylinders. 4. Check if any bearings are damaged, as damaged bearings will produce a buzzing noise. Solution: Replace the bearings. 5. Poor fuel quality leads to poor combustion, causing the engine to produce a popping noise. Solution: Use high-quality fuel. 6. Excessive engine noise may be related to unsuitable or dirty engine oil. Solution: Change the engine oil.