When the engine is idling, it always clicks, what is going on?

This may be because of the engine failure, or because of the loose parts, or because the engine parts are aging, when we encounter this kind of thing, we must send the car to a professional car shop to repair, do not bring unnecessary trouble to yourself, this can increase the service life of the car.

It could be a malfunction of the valve or injector, a problem with the solenoid valve, or an aging rubber.

I thought that this situation could be due to the low oil pressure in my engine, which caused the piston to collide with the cylinder wall while the engine was running.

This is because the engine is faulty, and it is also because the fuel consumption is too low, or the car starts cold, and there is no hot car, so it will keep ringing.

If you hear this sound during a cold start in winter, it's an oil problem. At room temperature, this sound is caused by the sound of a hydraulic valve tappet or the sound of a timing chain.

It may be because of the serious carbon deposits in your engine, which is why it makes such a noise.

The abnormal noise only exists when running at idle speed or low speed, which may be due to the excessive gap between the piston and the cylinder wall, the piston pin assembly or the connecting rod bearing assembly is too tight, the gap between the tappet and its guide hole is too large, and the valve cam profile is worn;

It is very likely that there is a problem with the carbon brush, so there will be a sound during this process of operation, and it feels like the car is not running smoothly.

Here's why:

1. Valve sound.

When the valve clearance is too large, or when the amount of oil on the cylinder head is small due to lack of oil, there will be a clicking sound!

First of all, check the oil level, whether there is a lack of oil! Look at whether the oil alarm light is on or not, that is, whether the oil pressure is normal! If it's all right, see if the valve clearance is too large, if it's a hydraulic tappet car, is there a problem with the hydraulic tappet!

2. Knock on the cylinder or the chain is abnormal!

Knocking on the cylinder generally does not appear for no reason, most of it is caused by excessive carbon deposits, if it is a mechanical knock, it means that the engine may be flooded, resulting in bending of the connecting rod or other accidents!

Not to mention the abnormal sound of the chain, the chain may be elongated or the tensioner may be damaged!

3. The crankshaft cam bearing gap is too large!

Generally, if this fault occurs, first of all, the oil lamp will turn on, the engine will shake, and the sound will become louder when you step on the accelerator!

This is generally caused by low oil pressure, and it is likely that the engine will have to be overhauled, and the oil pump will be checked!

4. Abnormal sound of gearbox!

Abnormal idle speed does not rule out abnormal transmission noise, when the gears of the transmission are damaged or the bearings are broken, there will also be a clicking sound!

5. Engine belt drive system failure!

For example, if the water pump or tensioner fails, it will clatter! This should be analyzed on a case-by-case basis!

There is a clattering sound in the engine, which may be caused by the following reasons:

1. Abnormal noise of engine belts, such as generator belts, air conditioning belts, steering pump belts, etc., may be too loose or too tight, or it may be that the belt is aging, adjust the tightness of the belt, apply butter to the belt, or replace the belt.

2. The engine lacks cylinders, a cylinder does not work, the engine will be unbalanced and produce abnormal noise, and it is also accompanied by the violent shaking of the engine, insufficient power and other faults, which may be the fault of the ignition module, spark plug and fuel injector, and the corresponding accessories can be replaced.

3. Engine "tempering" failure. When the car slows down and collects the oil, there is a "poof" sound, which may be the engine "tempering" failure, which is usually called the engine "fire", too much carbon deposition on the valve or the wrong timing of the valve will produce abnormal noise, cleaning the carbon deposit on the valve or adjusting the timing of the valve.

The engine idle click may come from the hydraulic tappet. The most fundamental reason for the abnormal sound of the tappet is low oil pressure, aging or loosening of the rubber of the foot, and too thick mixture, which will lead to idle clicking. In addition, when the car is cold started, idle clicks can also occur.

Generally speaking, there are many faults that cause the engine to rattle, such as the sound of excessive valve clearance, the sound of knocking on the cylinder, the sound of bearing clearance, the sound of the transmission, and so on.

The rubber on the feet of the machine is aged or loose. Machine base rubber is the rubber block between the engine and the frame. Its function is to reduce the vibration and cushioning of the engine when it is working, and to fix the engine.

Once the rubber of these machines is aged or loose, the engine will vibrate, and in severe cases, it will make a clicking noise. This kind of machine foot glue only needs to be replaced with a new one. The cause of abnormal idle noise is inside the engine or in the cab.

When the vehicle is idling, a crisp and rhythmic abnormal noise can be heard in the car, which may be caused by the cylinder knocking sound in the mouth of the old driver.

However, there are a number of factors that can cause cylinder knockout. For example, the common clearance between the piston and the cylinder is too large. When the piston is in compression, the pressure and temperature of the combustible mixture will increase.

If it's not waiting for the spark plug to ignite**, this is called detonation. Long-term knocking can cause irreversible damage to the engine. At the same time, refueling with a low octane rating can also result in a vehicle**, which is why I don't recommend that consumers refill a lower grade of fuel than their own model.

In fact, abnormal noise at idle is not the whole problem with the engine. For older cars with a long service life, when the machine tripod is displaced or the support is insufficient after long-term wear, the running engine will lose its fixed force point, resulting in a crash sound similar to click.

The abnormal noise of the driving mechanism when the vehicle is idling also occurs mainly on old vehicles or accident vehicles. Among them, the main reason for the abnormal noise of the old car is the aging of the rocker bushing and the lack of cushioning between the metal parts, similar to the situation of the tripod above. The main reason for the abnormal noise generated by the driving mechanism of the accident vehicle is the deformation of the collision part, and the replacement is neglected.

When the engine is started, the damaged parts will resonate with the normal parts and produce abnormal noise.

If the engine always makes a dripping sound when idling, it may be caused by the lack of engine oil, you can use a dipstick to measure it, if the oil is missing, you should add it as soon as possible.

Due to the hydraulic tappet, the oil pressure is low, the rubber of the feet is aging, the engine vibrates, and the car also makes a clicking sound when it starts.

This situation is caused by carbon deposits in the engine, and at the same time, there will be an increase in fuel consumption and a decrease in power.

Summary. This sound will appear when the engine is idling, this is normal, the engine speed is relatively low when idling, the timing chain of the engine, including the engine's valves, the engine's high-pressure oil pump, and this fuel injector. This kind of sound will appear when the speed is relatively low, this is a normal, there is no problem, and it can be used normally.

Now the engines are all like this, it doesn't matter.

When the engine is idling, it always clicks, why is that?

Hello, don't click to end, I'm textual to give you the full answer, 2-3 minutes.

This sound will appear when the engine is idling, this is normal, the engine speed is relatively low when idling, the timing chain of the engine, including the engine's valves, the engine's high-pressure oil pump, and this fuel injector. This kind of sound will appear when the speed is relatively low, this is a normal, there is no problem, and it can be used normally. Now the engines are all like this, it doesn't matter.

Teacher, hello, my car is a modern map in 2014, running 130,000 kilometers, recently the engine idle sound is getting louder and louder, mainly the sound of da-da-da, before the car was hot can not be heard, now the car is hot, the sound has decreased.

This is a normal phenomenon, and there must be slight wear and tear in the engine of 130,000 kilometers, so this sound will be more obvious when the hot car is idling. This one is fine to open normally, without any problems.

The engine is always clacking when it is idling, and it is also possible that there is a problem with the engine. Some people don't care if the oil pressure is low when driving, so this sound will be made at this time. The car has to be repaired after a certain period of time, otherwise the problems will become more and more frequent, and eventually the car will be scrapped.

When the engine is sluggish, you must first check whether the feet of the machine are aging, and apply it with glue. There will be rubber blocks in every car, which will reduce the instinct of the car at this time, and it must be repaired in time. <>

When driving, you must maintain good habits, and you must not throw everything around, and you may get into some crevices. The parts of the car are very trivial, and in the process of refueling, there can be no bad substances, and good habits must be maintained. Like some cars that have been used for a long time, old drivers will kick some parts with their feet when driving, which will also be easily damaged.

There was a clattering sound in the car, maybe somewhere has lost its fixed ability, and it must be changed in time. No matter when you drive, you have to ensure the health of the car, and you have to let yourself lift your spirits and take good care of it. <>

When there is a clattering sound in the car, don't ignore that your car should be replaced with parts. Before driving, all the parts should be carefully checked, and the average car will be repaired in about 4 months, so it is necessary to maintain it. If there is a lack of oil in the engine, there will also be a clattering sound, first of all, you can use a dipstick to measure it, and then add some oil.

When driving, you should not let the car drive without gas, which will damage the life of the car and will also affect the car. Whether it is an old driver or a new driver, since you have chosen to drive, you must ensure the quality of the car. If the oil in the engine is not added repeatedly, it may affect the engine.

It is true that there is a problem with the engine, and such a situation should be treated urgently, and the overall effect of the engine should be paid attention to to avoid serious problems and impacts.

Yes, because there are some foreign objects in the engine, and there is jamming, so there is such a sound, and the engine should be repaired in time.

Yes, the engine should be checked immediately because it makes a clicking sound when it breaks down and when foreign objects enter.

The most fundamental reason for the abnormal sound of the tappet is low oil pressure, aging or loosening of the foot glue and too thick mixture, which will cause idle clicking.

It is difficult for ordinary car owners to distinguish which are fault noises and which are reasonable noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. Differences between models equipped with turbocharged engines; 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 because of their own lack of understanding of mechanical knowledge, they mistake the reasonable abnormal noise car for a vehicle failure.

Therefore, learn to distinguish the abnormal noise of the car and avoid wasting time and energy.

How to identify the sound of a car:

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 detection 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 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 sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., generally the volume of the sail is small, the degree of wear and tear 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 driving 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.

It is advisable to check the belt to see if there is any mistracking. If there is no best, if there is, immediately reset or replace if necessary, so as not to have more serious consequences in the future, and it will cost money when things are wrong. If it is a high-pressure pump sound, it is normal, and most direct injection engines have this problem.

If it's something else, you need to check it, because it's likely that there is a problem with the engine, and you can't be too careless.

If after a long time of driving, idle speed or even during driving, there is still this kind of clattering sound, then the car is really a problem, the owner should also pay attention, such as the problem of lubricating oil, if the car is added with inferior oil, or there is no oil change for a long time, lack of oil, etc., knocking on the cylinder generally does not appear for no reason, most of it is caused by excessive carbon deposition If it is a mechanical knock, it means that the engine may enter the water and cause the connecting rod to bend or other accidents! Not to mention the abnormal sound of the chain, the chain may be elongated or the tensioner may be damaged!

Fuel injectors belong to the more precise electrical components. When high-pressure gasoline is atomized into the cylinder with a computer-tuned fuel injector, it needs to accurately execute the ECU's fuel injection time command. If the fuel injector makes a "click" sound, it means that the direct gap between the thimble and the sealing element is too large, if this sound is still there, it may be that the valve clearance is too large or the camshaft is leaking, and the throttle clearance needs to be adjusted or the oil seal needs to be replaced.

The return spring fails, and the return spring of the release bearing is used to ensure that the release bearing can always follow the movement of the fork, especially after the clutch is released, it can ensure that the release bearing is out of contact with the rotating pressure plate in time. When the return spring fails, the release bearing may come into contact with the pressure plate. Check the tooth sound of the gearbox This sound is a sound that appears in the idle state, he appears in the neutral position of the gearbox, a very rhythmic click, as long as it is in gear, it will disappear, and it will disappear when the clutch is pressed.