Is there a whistle at the valve of MG 6?

The reasons for the whistle of MG 6 refueling door are: 1, the turbocharger impeller is worn; 2. The turbocharger bearing is damaged; 3. The engine exhaust valve is not tightly sealed, and the engine exhaust gas recirculation valve and gasoline engine throttle valve are not tightly sealed.

This situation is probably caused by excessive valve clearance or valve looseness.

The following information is not available when the oil filler whistle is released:

1, stepping on the accelerator will drive the valve to open and close, so the valve will wear or loosen after long-term use.

2. When the airflow blows on the loose valve, the valve will vibrate, resulting in metal collision or whistling.

3. When this problem occurs, the problem can be solved by replacing the valve. During routine maintenance, it is also necessary to check whether there is carbon deposit on the valve. If there is, it should be cleaned in time, otherwise it will have a great impact on vehicle power.

There is a whistle when the engine refuels, which is often called abnormal sound of the refuel door. There will be a whistle when the engine refuels. Reason:

1, the turbocharger works by exhaust gas, and the engine can't drive the turbine at low speed, so it doesn't work, so there is no sound. Generally speaking, turbines work above 2000 rpm. Uphill is to resist high speed, empty stepping on the accelerator, etc. And the engine exhaust gas increases, pushing the turbine, so there is sound, which is normal.

2. The engine exhaust valve is not tightly sealed.

3. Diesel exhaust gas recirculation valve (EGR) and gasoline engine throttle valve are not tightly sealed.

4. The exhaust pipe is not tightly sealed or poorly welded.

The above reasons are for reference only, and you need to go to the service station for further inspection and confirmation if necessary.

(Photo/Text/Photo: Ask and Answer Animals) @20 19