What are the reasons for abnormal noise in car idling?

The reasons for the abnormal noise of the car idling: 1. The abnormal noise caused by the large clearance of the mating refers to the abnormal noise caused by the large clearance of a certain part of the engine due to wear; 2. The abnormal sound of the engine cylinder is missing, which mainly refers to the engine with one or more cylinders not working normally; 3. The abnormal sound of the engine knocking on the cylinder refers to the sound of the car starting the cylinder, and the piston knocking on the cylinder refers to the swing or channeling of the piston in the cylinder when it moves up and down, and its head or skirt collides with the cylinder wall and cylinder head to produce abnormal sound. Idle speed is a working condition of the car, which refers to the engine running in neutral gear, and the speed at which the engine is idle is called idle speed.

This may be because the quality of the car is not good in some places and there is no seal, so in the idle state, the car does not move forward and the engine idles, resulting in a collision and abnormal sound in the unsealed place.

Consider that it is the problem with the engine. You can go to some places where the car is repaired and find a professional to conduct a comprehensive inspection of the car. It is also responsible for one's own personal safety. At the same time, it will avoid some troublesome things.

The specific situation needs to be analyzed on a case-by-case basis. For example, which part of the sound and what kind of sound? It is recommended to go to a 4S shop or a trusted garage. Find the problem and solve it thoroughly.

1.The most common cause of car shake caused by serious carbon deposits in the engine is that the throttle valve is too dirty or the fuel injector is too much carbon. When there is too much carbon deposit inside the engine, the gasoline sprayed by the cold start injector will be absorbed by the carbon deposit, resulting in the cold start mixture being too thin and making the start.

2.Ignition system problemsCheck the working condition of the spark plug, high-voltage wire and ignition coil, the ignition system is working poorly, and the spark plug is jumping.

3.If the oil pressure is unstable, if you have cleaned the engine carbon deposit, washed the throttle, changed the oil pad and spark plug, etc., you still find the body at idle.

4.Aging of engine parts: Shake of the car is also related to the aging of the engine feet. The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorption.

Most of the abnormal noise of vehicle idle is caused by mechanical failure, so the abnormal noise when the vehicle is idle can be regarded as a signal of mechanical failure, at this time, you should go to a regular store to check the cause of abnormal noise, and replace the damaged accessories at the best time.

1. Squeak when the car is cool.

The squeak when the cold car starts is often caused by the belt being too loose or aging, and it will be gone after idling for a while, focusing on the auto repair personnel to check the tightness and aging of the belt.

2. Squeak when you step on the brakes.

Each pair of brake pads uses about 5-80,000 kilometers per kilometer, which has a lot to do with your own braking habits. Some cars have a brake pad alarm function, some don't, the squeak of the brakes is caused by the brake pads are thin, and the brake pads need to be replaced.

3. Squeak in the direction of hitting.

The squeak of the steering wheel is caused by the damage of the steering ball joint, and if the direction is played in situ, it may also be caused by the shock absorbing pressure bearing, which is composed of small beads, and the beads will squeak without lubrication.

4. Stepping on the clutch squeaks.

If you press the clutch pedal and squeak, release the pedal and immediately disappear, often due to the clutch bearing, then you need to lift down the gearbox to replace the clutch, and by the way, check the clutch pressure plate and other objects.

Hello, the engine squeaks when idling, generally the generator belt or booster pump belt aging or loosening sound, go to the repair shop to check the tightness and aging of the belt, if the belt is too loose, re-tighten it, if it is the belt aging, need to be replaced in time, I hope it can