There is a buzzing sound after the car starts!!

The buzzing sound at idle first needs to eliminate the resonance of loose parts, you listen carefully and touch it at the position where the abnormal sound occurs, and feel that the sound is out. The area you said is still not detailed, and there may be a lot of resonance in the co-pilot position, so you still need to carefully screen it yourself, and if you can't climb under the chassis to listen, see, and touch, and then judge.

Also, the resonance generally occurs in a certain idle speed, once the oil is slightly increased the speed will disappear, this is also one of the ways to judge, it is best to cooperate with two people, one person to operate the throttle, one person to investigate.

If you have any questions, please continue to ask.

If the above helps you, please give it as soon as possible.

After starting, the buzzing sound of parking in situ is a typical fault caused by resonance, focusing on checking the engine pawl pad, if the abnormal noise still exists during driving, it is necessary to check the transmission pawl pad.

The area you said is not very detailed, which position is the sound, so you still need to carefully screen it yourself, the buzzing sound at idle speed first needs to eliminate the resonance of loose parts, it is best to listen carefully, look and touch the place where you think, and then judge;

Also, the resonance generally occurs in a certain idle speed, once the oil is slightly increased the speed will disappear, this is also one of the ways to judge, it is best to cooperate with two people, one person to operate the throttle, one person to investigate.

If you still can't find the location you want in the end, for your safety, it is recommended that you go to a professional repair shop or 4S shop to check.

The abnormal sound of the car after starting is the sound of the gasoline pump working. The following are the reasons for the abnormal sound of the car starting: 1. Working principle:

After the vehicle is started, the gears of the starter may also engage with the gear ring of the engine flywheel, and the starter gear is regulated by an electromagnetic coil, which may also make a buzzing sound when working, which is basically normal. 2. After the car starts: the abnormal sound is the sound of the gasoline pump working, and the gasoline pump will start working after the power is turned on, which is to start the engine as a preparation.

If the gasoline pump does not work after the power is turned on, the fuel supply system will not have enough injection pressure when starting the engine, which will affect the engine starting difficulty.

Summary. Pro, the cleaning steps of the throttle are as follows:

1. First unplug the wiring harness plug next to the throttle, unscrew the fixing screw with a hexagon screwdriver, and then remove the throttle.

2. Cover the air intake to avoid debris falling into the engine.

3. Spray cleaning agent on the dirt. Be careful not to spray the cleaning agent on the outside of the throttle, and do not break the throttle valve inside, and avoid causing damage to the throttle motor next to it.

4. Finally, it can be dried naturally. It is best not to wipe it with a rag, it is easy to wipe off the lubricating coating on the surface.

5. After installing the throttle back, power off and restart or redo the throttle matching.

There was a buzzing sound as soon as the car started.

Hello dear, there is a buzzing sound immediately after the car starts, which is the sound of the gasoline pump working or the sound of exhaust deflagration

Dear, please describe your specific situation.

Dear, whether there is any abnormality in the ignition and whether there is any abnormality in driving.

After stopping for a few days, the location will buzz open, and after a while, the fire will be restarted.

This is due to the fact that the throttle part has not been cleaned for a long time, and the carbon deposits on the throttle cause the position sensor to jam at the beginning stage.

Dear, you will appear after a long stop.

Dear, cleaning the throttle will solve the problem.

There are no safety hazards.

Dear, no

Dear, this is a minor issue

How to clean? Dear, I'm going to go to the garage and take it down. High-pressure gas rushing.

Pro, the cleaning steps of the throttle are as follows: 1. First unplug the wiring harness plug next to the throttle, unscrew the fixing screw with a hex screwdriver, and then remove the throttle. 2. Cover the air intake to avoid debris falling into the missing bridge engine.

3. Spray cleaning agent on the dirt. Be careful not to spray the cleaning agent on the outside of the throttle, and do not break the throttle valve inside, and avoid causing damage to the throttle motor next to it. 4. Finally, it can be dried naturally.

It is best not to wipe it with a rag, it is easy to wipe off the lubricating coating on the surface. 5. After installing the throttle valve back, power off and restart or redo the throttle valve matching.

There are two situations, the first may be that your car is still in the run-in period, and the engine control template has not yet carried out the ignition time to the closest value of deflagration, that is, the ignition time of your engine has been delayed, so as to cause engine deflagration. The second situation is that the oil pressure of the engine is so low that the engine shivers.

If the problem is locked in the tire, the 4-wheel alignment will indeed affect the tire noise, but before the tire eccentricity problem occurs, the deviation of the 4-wheel alignment will not affect the very large tire noise, and the tire noise is still the following: tire pressure, tire width, tire material, tire tread shape, and the width of the tire tread groove.

The reasons for the buzzing of the car are: 1. The tire pressure is too high, which causes serious wear on the crown of the tire, the shock absorption and cushioning performance of the tire decreases, and the tire noise increases significantly; 2. The contact friction between the crown part of the tire and the ground is uneven, and there is a phenomenon of unevenness; 3. The wheel bearing is worn loosely.

1. Check whether the chassis screws are loose, check whether the rubber sleeve of the chassis lower swing arm is loose, if so, it is recommended to go to the maintenance station for maintenance;

2. Check the engine oil, if it is missing, add it to the appropriate position;

3. Check the valve clearance and adjust it to a suitable position.

First of all, determine the location of the abnormal noise! If the car can be lifted with a lift, one person is in gear in the car, and the other person is under the car to judge the abnormal noise.

If the squeak occurs near the tyre and the wheels and bearings have been eliminated, then there is a possibility that the brake pads and brake discs are rubbing against each other. Generally, the abnormal noise of the brake pad is mostly due to the friction with the brake disc caused by the hard points of the brake pad, and the noise can be ignored if the sound is small; If the noise is loud, you can remove the brake pads and polish them with sandpaper before reinstalling them, and most of them can be solved. If the sound is at the junction between the gearbox and the engine, it may be an abnormal sound caused by damage to the clutch plates and release bearings.

If it is inside the gearbox, then Li Qimo's abnormal noise may be abnormal wear of the first and second gears. It should be reminded that repairing a quiet key car is the same as seeing a doctor, and it is also very important to find an experienced maintenance worker, so that you can definitely avoid detours and shorten the maintenance time as much as possible.