What Causes Engine Noise to Be Heard Inside the Car?
1 Answers
Inability to adapt to new oil viscosity, poor sound insulation, insufficient coolant, and abnormal shock absorbers can cause engine noise to be heard inside the car. Inability to adapt to new oil viscosity: After prolonged use, the engine oil in a car becomes thinner, and carbon deposits accumulate. When new oil is replaced, the engine may struggle to adapt to the oil's viscosity, causing higher RPMs and resulting in louder engine noise. Poor sound insulation: If the car's engine sounds normal when heard from outside but appears noisier when sitting inside, it indicates poor sound insulation in the car. Insufficient coolant: In low temperatures, insufficient coolant can also lead to increased engine noise. Abnormal shock absorbers: Issues with the car's shock absorbers can also cause the engine noise to become louder. Solutions for hearing engine noise inside the car: Inability to adapt to new oil viscosity is a normal phenomenon and will resolve after driving for some time. Poor sound insulation requires checking the car's sealing strips; if they are found to be aged, they need to be replaced. After replacement, test the effect again. Insufficient coolant requires timely replenishment. Abnormal shock absorbers need to be inspected or replaced at a repair shop.
