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List of the table of contents of this article:

• 1,OKX Wallet APKWhat's wrong with the squeaky scream of the engine after starting the car
• 2, Car engine makes a "squeaky" sound
• 3, What's wrong with the chatter of the polo engine

What's wrong with the squeaky scream of the engine after starting the car

1. It may be that the carbon brush inside the starting motor is faulty;After a long time, the engine belt will age and slip, and then make a squeaky sound; the base bolt is loose, causing the engine support to not be installed well.

2. [Pacific Automobile Network] The harsh screams after the car starts are generally caused by the slippage or serious wear of the belt. In this case, you can replace the new belt or tighten the belt a little, and the scream will disappear.

3. If the valve gap is too cong, there is an impact sound between the transmission parts and between the valve and the valve seat, accelerating wear; and reducing the duration of valve opening, and the cylinder inflation and exhaust deterioration. If the valve gap is too small, the engine will cause the valve to be closed loosely in the hot state and cause air leakage, resulting in a decrease in power and even a burnout of the valve.

4. This happens because the belt around the engine is loose.When this happens, the belt should be tightened or replaced. There are many belts around the engine, and there are also generators, compressors, water pumps, steering pumps and other equipment around the engine, which need to be driven by belts.

5. This is the sound made by the belt. After this situation occurs, a new belt should be replaced. There are belts on the periphery of the car's engine, which can connect generators, air conditioner compressors, water pumps, steering boosters and crankshafts together. If there is this belt, then the engine cannot run normally.

Car engine makes a "squeaky" sound

Balve failure The valve controls entry and discharge Parts of the air and fuel of the engine. If there is a problem with the valve, such as damage or deformation, it will cause abnormal engine noise. At this time, the valve needs to be replaced. Oil pump failure Oil pump is a component responsible for supplying oil to all parts of the engine.

When the engine belt is not elastic enough, the engine will make a squeaky and sharp noise at work. In this case, adjusting the tightness of the engine belt can avoid noise.

CarThe reasons for the squeaking of the engine are as follows: the engine lacks a cylinder: When the engine lacks a cylinder, the car will show problems such as louder engine noise, unstable idle speed, and abnormal body shaking. At this time, it is necessary to check the condition of the cylinder and the working condition of the spark plug, and replace the spark plug if necessary.

When the engine of the car makes a strange sound, first determine the location of the abnormal sound, and then diagnose what's wrong with this position. There are many sources of abnormal engine noise, such as abnormal noise of belt, abnormal valve noise, knocking cylinder and so on. Abnormal belt noise is the best judgment. As long as the engine starts, there will be a squeak, which is the strange sound of the belt.

It may be that the carbon brush inside the starting motor has failed; after a long time, the engine belt will age and slip, and then make a squeaky sound; the seat bolt is loose, causing the engine support to not be installed well.

Reason: When the car is cold started, the sound of the engine will be slightly louder than when it is hot. As long as the sound sounds uniform and soft and not harsh, there is generally no problem. This is because when the car is cold, the gap between the cylinder wall and the piston has not reached the optimal size, and the lubrication of the oil is not sufficient.

What's wrong with the polo engine jirping

Shanghai Volkswagen Polo (check the transaction price | detailed explanation of the model) The reason for the engine buzzing: the oil is dirty or the oil viscosity does not match ; The oil is not sufficiently lubricated to all parts of the engine; the wear gap of the engine is enlarged; the engine, throttle valve and spark plug have too much carbon; the air filter is too dirty.

If there is no abnormal sound in the engine at low temperature, and there is a "tack" sound when idling after the temperature rises, and the organism vibrates, and the higher the temperature, the louder the sound, it is because the piston deformation piston ring is too tight.

The reasons for the sound are: the connecting rod bearing is loose, the shaft tile is burning and melting or the size does not match and the size is rotated; the crankshaft bearing is loose or the shaft tile is burning; the piston pin is broken; the crankshaft is broken.