What happened when the exhaust pipe squatted down and heard a sudden noise?

The engine did not shake when idling, accompanied by the "sudden" sound of the exhaust pipe, and even showed signs of flameout. Since no specific vehicle type is specified, the possible reasons are as follows:

1, oil pipeline

Blockage, smooth oil circuit, rail pressure, etc. The electric fuel pump is abnormal, or the fuel filter is blocked for various reasons, or the oil is blocked. Abnormal nozzle: it may lead to unqualified quality, foreign body blockage, poor sealing, apron aging and other defects.

2. Air intake or idle speed control

Dirty or leaking stepper motor and throttle body. Sensors such as air pressure, temperature and throttle position are abnormal, and the data is incorrect.

Precautions:

As far as the automobile exhaust pipe is concerned, it plays a role in reducing vibration and noise, and prolongs the service life of the exhaust muffler system. The main material of exhaust pipe is stainless steel.

For ordinary cars, the noise may be crazy because the exhaust gas has left a lot of pressure on the engine. At this time, the exhaust pipe of the car is the main muffler. A muffler is installed in the exhaust pipe, which greatly reduces the noise of the car.