What Are the Causes of Increased Engine Noise and Vibration?
2 Answers
The causes of increased engine noise and vibration include exhaust system blockage, insufficient power steering fluid, lack of engine oil, contaminants inside the engine, and loose engine belts. Below are detailed explanations and solutions: Exhaust system blockage: The engine produces a roaring sound and rapidly loses power. It is necessary to have the exhaust system checked at a professional repair shop. Insufficient power steering fluid: Unusual noises occur when accelerating or decelerating. This may be due to a lack of power steering fluid, which needs to be replenished. Lack of engine oil: Unusual noises during idling may be caused by insufficient engine oil or low oil pressure. Check the engine oil pressure or add oil as needed. Contaminants inside the engine: The engine makes a noise similar to a pencil tapping on a table, which increases with engine speed. This may indicate contaminants inside the engine. It is recommended to change the oil and oil filter. Loose engine belt: The engine produces a sharp noise, especially after turning on the air conditioning, which may be due to a slipping drive belt. Tightening the belt can resolve the issue.
I think the engine noise has become louder and there's shaking, which is quite common, mainly due to some issues with the ignition system or fuel. For example, if the spark plugs are old and worn out, it can lead to uneven combustion, causing the engine to shake and produce buzzing noises. Also, clogged fuel injectors or dirt in the fuel lines can make the fuel supply unstable, making the engine work harder and produce louder sounds. If the air filter hasn't been replaced for a long time, the lack of airflow can make the engine struggle. Additionally, poor-quality or insufficient engine oil reduces lubrication, increasing friction and naturally making the noise louder. Carbon buildup is another key issue; when carbon deposits accumulate inside the engine, it can cause rough operation and shaking. I suggest not delaying and getting the spark plugs and these components checked early to avoid small problems turning into major repairs.
