What s the deal with the sizzling sound that the engine makes when it accelerates?

1. The engine has a "squeak" sound, which is the same as steam or air coming out of the engine. Possible problems, overheating of the engine, check the cooling system. The exhaust system is clogged, and the vacuum tube is blocked.

Leakage, or breakage.

2. Stepping on the accelerator, I found that the acceleration was not obvious, there was a lack of power, and the engine had a hysterical sound. The most likely time is when the engine is hot, or cold, or when there is a lack of oil. The causes of such problems can be divided into, air filter, spark plug.

Ignition wire, gasoline, gasoline filter, vaporizer, oil pump and other issues. Check the air filter, whether it is dirty, whether the spark plug is old, and it has to be replaced, and the ignition coil.

It's broken, the gasoline is not clean, for example, there is water in the oil road. There is also a check on the oil pump.

3. When accelerating, the engine will have a whirring sound, or when decelerating, it will also appear, in short, with the rpm change, the sound volume changes. The possible reason is that the power steering oil is missing, and the fuel is filled. Generator bearings may be damaged.

Power steering pumps, water pumps, will produce similar noise.

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It may be caused by excessive wear or even improper assembly or adjustment of some parts. Some abnormal noises can still predict that the engine will be damaged accidentally, so when the engine has abnormal noise, it should be repaired in time to prevent the fault from expanding.

It's normal for the engine to squeak when your car is accelerating sharply. There is nothing wrong with that. This is the drier sound of the engine when accelerating sharply.

It means that this generator is about to break.

There is an abnormal sound when you step on the accelerator, and it may be the sound of the oil pump or related places. Or maybe the release bearing of the clutch is broken.

It is necessary to check whether there is any air leakage in the intake duct of the engine, whether the air cleaner is installed in place, where the sound comes from, and whether the engine belt is aging, loose and slippery.

It depends on where it happens. On the right side of the engine is generally the belt of the generator; The words on the left are a matter of festival atmosphere; The presence of front brake pads may be mostly due to brake calipers, and a small number of them are caused by jamming. It may be that when the piston of the brake caliper is pressed back when it is installed, it is crushed, resulting in a certain degree of stuckness.

If the sound is in the clutch part, then you can pay attention to the wear of the clutch, try to step on the accelerator, if the car runs normally but does not accelerate, this is an obvious slippage phenomenon, most of the clutch plates are worn thin, if there is a sizzling sound, the clutch release bearing is likely to be broken.

Hello, the current number of people consulted may not reply in a timely manner, if it is a vehicle failure problem, it is recommended to use the computer to detect the specific cause of the failure, search for "car master" can consult car problems at any time, 24 hours ** answer.

When the clutch release bearing is damaged, the clutch plate cannot be completely disengaged, which eventually leads to an abnormal sound during acceleration.

On the issue of abnormal noise of automobiles, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. In the case of a turbocharged engine, there is a must be a difference between the sound and the sound of a naturally aspirated engine; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, it is likely that they lack their own understanding of mechanical knowledge, so they can distinguish the abnormal noise of the car and avoid wasting time and energy.

Second, the identification method of car noise:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will emit a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation of the car without repair.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize human interference.

: 1. The main bearing of the crankshaft rings 2, the connecting rod bearing rings 3, the piston knocks the cylinder in the cold state 4, the piston knocks the cylinder in the hot state 5, and the piston knocks the cylinder evenly in the hot and cold state.

Hello Rapid acceleration with a brush sound may be due to slippage caused by loose belt. Just adjust the belt.

As long as the water temperature is normal, it's fine. No problem, it was cool in the morning or for a long time to park the car, and the engine water temperature did not reach the normal temperature. The mixture supplied by the engine computer is thick, and the oil supply is small, which cannot meet the lubrication requirements, so the speed is high and the sound is loud or the work is unstable and the exhaust smell is large, and as the engine gradually heats up, it slowly returns to the normal idle speed.

Hello, the current number of people consulted may not reply in a timely manner, if it is a vehicle failure problem, it is recommended to use the computer to detect the specific cause of the failure, search for "car master" can consult car problems at any time, 24 hours ** answer.

The reasons for the sound of car acceleration are as follows: 1. The engine has abnormal noise. There is a high possibility of abnormal noises in the engine compartment, usually metallic screeching or wind whistling noises.

2. There is an abnormal sound in the gearbox. There is a whistle-like sound when you press the clutch or throttle and don't change gears. 3. There is abnormal sound in the key loss of grinding high.

When driving and stepping on the accelerator or brake, there are always some abnormal noises in a certain part of the body, the sound is not loud, and it does not affect normal driving. The solution to the sound of car acceleration is as follows: 1. The engine has abnormal noise.

Abnormal engine noise indicates that the technical status of a certain mechanism of the engine has changed. It is mainly caused by excessive wear and tear of some parts or improper assembly and adjustment. Some abnormal noises can still predict that the engine will be damaged accidentally, so when the engine has abnormal noise, it should be repaired in time to prevent the failure from expanding.

2. There is an abnormal sound in the gearbox. There are many transmission parts, and the reasons for the sound are also more complex, and attention should be paid to when analyzing and judging: whether it is related to a specific speed, such as some planetary teeth that sound at about 50km u002fh, it is more obvious.

Whether it is related to certain gears, which is very important for judging the failure of the transmission, if a certain gear sounds, it must be related to the components that affect the transmission of the gear; If all gears are ringing, it is often the case that the gear shaft is faulty or the transmission is short of oil. Whether it is related to specific actions, such as adding and decreasing gears, starting sharply, accelerating sharply, decelerating, turning, etc., are all effective means to judge abnormal noise, among which changing speed and direction are particularly important for judging rear axle faults. 3. There is abnormal sound of wear.

Solution: The abnormal noise of the door is mainly caused by the lack of lubrication, but it is necessary to determine whether it is the position of the door hinge or the glass regulator, door lock mechanism, Qi Zaoqiao handle mechanism, etc.

Generally speaking, there are two reasons for the noise after the engine starts: first, if the car does not move for a long time, the oil will flow back to the oil pan, and the valve will lack the sealing and lubrication of the oil when the car starts, resulting in noise, which is normal. The second is the abnormal sound of the belt when starting, in this case, it is necessary to check whether there is a problem with the belt in time.

If there is abnormal belt noise, check the assembly first. This abnormal noise can be caused by friction between the timing belt and the timing box. You can loosen the screws on the official chassis half a turn and see if the abnormal noise disappears.

Secondly, you can check the use of the generator belt, which may be the abnormal noise made by the accessory belt. The tightness of the timing transmission part is adjusted too tightly. Remove the power generation and aerodynamic adjustment belts and eliminate the problem with both belts.

There is a problem with the timing belt tensioner and it usually needs to be replaced along with the timing belt. It may be the noise caused by the engine's individual bearing problems. It is necessary to carefully discern the specificity of the sound.

If you can't find the reason for the body, it is recommended to go to a professional repair shop to check and determine the reason.

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