Why is there a banging sound in Buick Excelle 2008?

Buick Excelle 2008 has a banging sound because of the serious carbon deposition on the accelerator. It will cause the automobile power to decrease, the automobile fuel consumption to increase, the automobile exhaust emission to exceed the standard, the engine to shake, and the starting is difficult. The main function of the throttle valve is to control the air intake, which will affect the fuel injection. As the intake air increases, the fuel injection will also increase, so the throttle valve is a device to control the intake air and fuel injection into the cylinder.

Working principle of throttle valve

The traditional engine throttle control mechanism works through a flexible steel wire or pull rod, one end of which is connected with the throttle pedal and the other end is connected with the throttle linkage plate. However, this throttle has gradually faded out of people's sight, and now most of the throttles are electronic throttles. The electronic throttle mainly uses the throttle position sensor to control the throttle opening according to the energy required by the engine, so as to adjust the intake air.