Diagnostic techniques for large engine noise
  • Automotive

The noise of the engine can be detected from the following aspects: first, when the noise is cold starting, the noise of the engine must be inspecting the rubber or lubricating system of the engine; two the noise is big, the noise becomes smaller or disappearing when the speed is accelerated, the combustion chamber is checked to cause the deflagration, and the three is to check the fan when the temperature is high; and the four is the vehicle. When the vehicle stops, the noise increases with the increase of the throttle. It is necessary to check the exhaust muffler. Five, the acceleration of the noise and the high fuel consumption during the operation may be a catalytic blockage of three yuan.