What is the hum of Emgrand gs idling?

Reasons for idling hum of Emgrand gs in Pacific Auto Network: 1, failure of temperature sensor or temperature regulator; 2. The reason why the car buzzes at low speed or speed change is that the gap between the piston and the cylinder wall is too large; The hum at high speed is caused by the vibration of sound.

Geely Emgrand gs noise test, how many decibels is Emgrand gs noise? Geely Emgrand GS has done a good job in noise testing, and the idle noise has reached the same standard as BMW Benz, 35.8 decibels.

Most car owners are satisfied with the seat comfort and sound insulation effect of Emgrand GS. In the previous test drive, Emgrand GS also mentioned that the new car performed well in terms of comfort. It seems that Geely has made more efforts in driving comfort. The problem is that the tires are noisy. Emgrand GS provides 17-inch and 18-inch rims (top models are equipped with 18-inch rims) with a tire width of 225mm. Compared with 205mm and 2 15mm tires, the tread width of 225mm tires will increase, and the friction surface between tires and the ground will also increase, pushing more air to form "air masses" to generate vibration and increase tire noise. In addition, the increase of rim size and the design of tread pattern will also increase the tire noise, so we have to bear some noise effects while enjoying the beauty of large-size wheels. Geely needs to further optimize the tire noise pollution.

Geely Emgrand gs runs high-speed noise, and the measured noise value of Emgrand gs is quite good. The noise test result of Geely Emgrand gs is 35.8 decibels. At the moment when the window rises to the top, the car still has a very obvious sense of isolation from the external noise, and the engine noise does not disturb the people. However, the disadvantage of Emgrand gs is that the tire noise is high. The faster the car travels, the greater the tire noise is inevitable.

The tire noise of Geely Emgrand gs has a lot to do with its tires. Emgrand GS offers two kinds of wheels (top models 17 inch and 18 inch) with a tire width of 225mm. Compared with 205mm and 2 15mm tires, the tread width of 225mm tires will increase, and the friction surface between tires and the ground will also increase, pushing more air to form "air masses" to generate vibration and increase tire noise. In addition, the increase of rim size and the design of tread pattern will also increase the tire noise, so we have to bear some noise effects while enjoying the beauty of large-size wheels. Geely needs to further optimize the tire noise pollution.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)