Kneeling for an answer, a loud gurgling sound was heard in the engine cab

Everyone is the same with these voices, so there's no need to worry about it.

The "gurgling" sound is mainly ** in the timing of the tightening wheel.

There are several symptoms of a click:

1.Cold car: 1) When the cold car is just started, due to the low engine temperature and high speed, the belt rotation will cause the cover to shake and make this sound.

2) When the cold car is just started, because the oil in the engine is relatively thick, the oil pump cannot pump up all the oil in an instant, lubricate, reduce noise, and all parts of the engine, and the valve lifter at the top will also make this sound because there is less oil and air.

2.Hot car: The sound of the fuel injector when it is working. (slightly).

The sound of "chirp" is the sound of the belt. (Tightness adjustable).

This sound should be the sound of water circulation, you can go and check if your car's coolant is sufficient?

Hello, this may be the booster pump ringing, go to the repair shop to check it.

The gurgling sound of the vehicle may be the sound of a damaged shock absorber, and the other is the sound of a damaged wheel bearing and the sound of a lack of oil in the third ball head.

If the car is idling in place, the chassis of the car makes a "poof" sound, and when you step on the accelerator, the frequency of the sound will be faster, then it is likely to be due to the exhaust pipe leaking, so if this happens, then you must go to a professional repair shop for inspection and maintenance.

Tips to avoid damper damage

1. When driving daily, try not to load heavy objects to increase the probability of the shock absorber bottoming out, and at the same time, the oil in the shock absorber can be fully "stretched".

2. Slow down when encountering potholes, especially the kind of large potholes without buffer, which quickly passes through the shock absorber and loses greatly. If you hear a crisp metal crash while driving through a pit, stop in time and check the shock absorbers.

This phenomenon in the engine is related to the coolant, the lack of coolant or the quality of the replaced coolant is problematic, this situation is more likely to occur in the summer when the temperature is hot and high, which is often said to be the phenomenon of boiling the pot. This will affect the performance of the car, as well as the service life, in this case, we must pay attention to it and deal with it in time.

When there is a lack of antifreeze, it is difficult to find the lack of antifreeze in general inspection, because the vehicle is in a hot state, and the lack of antifreeze in the warm air tank is not easy to see, so it leads to disassembly and maintenance, and the cost increases.

Engine coolant considerations.

Coolant is an indispensable part of the engine. It circulates in the engine cooling system to take away the excess heat generated by the engine's operation, so that the engine can run at its normal operating temperature. However, as the time of use increases, the performance of the coolant gradually loses.

Therefore, the coolant should be scientifically tested according to the operation of the engine, and the coolant that can no longer be used should be replaced in time.

The thermal efficiency of the engine is only 30% 40% when combusting, and the remaining heat must be taken away in time, and the normal working temperature of the engine with a maximum speed of 4000 r min is 80 90. The normal operating temperature of the engine with a maximum speed of more than 6000 r min is 88 105. 40% of the remaining heat after the engine is done is taken away by the oil, and 60% is dissipated into the surrounding air by the cooling system.

1.Engine Oil If the oil viscosity of the vehicle is too high, it is easy to cause problems in the operation of the engine, and the lubrication effect will deteriorate, resulting in engine noise.

2.Transmission belt Check if the transmission belt is loose, sometimes the belt is loose, which will cause the engine compartment to become louder. This.

3.Water temperature If the engine is noisy, it is also possible that the water temperature is too high, and it is necessary to see if the water temperature gauge is normal and whether there is smoke in the engine compartment.

4.Idle If you feel that the noise is relatively loud when idling, and the idle speed of the vehicle is high, it is likely that the throttle, air intake, and fuel injector of the car should be cleaned.

5.Sound insulation If you listen to the engine running normally from the outside, but you feel that the noise is too loud when you sit in the car, it means that your vehicle is poorly soundproofed.

Analysis of the cause of the special noise of the automobile engine.

1. Engine oil. If the oil viscosity of the vehicle is too high, it is easy to cause problems with the operation of the engine, and the lubrication effect will become poor, resulting in high engine noise. Therefore, at this time, you should go to the repair shop in time to check whether it is time to change the engine oil, or calculate whether the time for maintenance is up.

2. a transmission belt.

Check to see if the drive belt is loose, sometimes the belt is loose and can cause the engine compartment to become louder. At this time, the transmission belt needs to be replaced in time.

3. Water temperature. If the engine is noisy, it is also possible that the water temperature is too high, and it is necessary to see if the water temperature gauge is normal and whether there is smoke in the engine compartment. Be sure to change the coolant before winter.

4. Idling. If you feel that the noise is relatively loud when idling, and the idle speed of the vehicle is high, it is likely that the throttle, air intake, and fuel injector of your car should be cleaned, especially the throttle.

5. Sound insulation. If you listen to the engine working normally from outside, and feel that the noise is too loud when you sit in the car, it means that your vehicle is poorly insulated. The vehicle's seals should be inspected to see if there is any signs of aging. Or increase the sealing effect of the vehicle.

It should be the sound made when the engine is idling, if the sound is loud, you can do the maintenance of carbon deposition, the sound will be much quieter.

1) Suction stroke: the intake valve is opened, the piston tends to descend from the top dead center, and the cylinder volume slowly increases;

2) Compression stroke: the intake and exhaust valves are closed, the piston goes up from the bottom dead center, and the cylinder volume gradually decreases;

3) Working stroke: the intake and exhaust valves are closed, the diesel fuel is sprayed in the form of a mist, and it spontaneously combustifies under the action of high temperature and high pressure, and the piston goes down from the top dead center to drive the crankshaft to rotate through the connecting rod;

4) Exhaust stroke: The exhaust valve is opened, the piston goes up from the bottom dead center, and the exhaust gas after combustion is pushed out by the piston.

The engine is rumbling, it is because there is a lack of oil in the gears, or dust is in, or it is possible that the machine is malfunctioning.

Summary. If it is an engine timing belt, there are the following situations:1

Cold car: When the cold car is just started, due to the low engine temperature and high speed, the belt rotation will cause the cover to shake and make this sound. (2) When the cold car is just started, because the oil in the engine is relatively thick, the oil pump cannot pump out all the oil in an instant, lubricate, reduce noise, and all parts of the engine, and the top valve lifter, because there is less oil and air, so this sound will also be emitted.

2.Hot car: The fuel injector makes a sound when it is working.

Slight) "chirp" sound ** than belt sound. (Tightness adjustable).

It's still there. Hello, I'm glad to answer for you According to the situation you described, this is a big reason for the slight blockage of the warm air water tank in the cab, which leads to this kind of judgment, and it is recommended that you replace it with a new warm air water punch box!

It is the sound of the engine timing belt idler screws, and there is a cooing sound after replacement.

If it is an engine timing belt, there are the following situations:1Cold car:

When the cold car is first started, due to the low engine temperature and high speed, the belt rotation will cause the cover to shake and make this sound. (2) When the cold car is just started, because the oil in the engine is relatively thick, the oil pump cracks and grips it is impossible to extract all the oil in an instant, lubricate, reduce noise, and reduce the engine parts, and the top valve lifter, because of the lack of oil and empty source gas, so it will also make this sound. 2.

(Tightness adjustable).

Summary. In this case, you can hear this sound, if you feel that it is in the engine compartment, then you need to check the engine, check the belt of the engine, including the pulley bearing tensioner, as well as the water pump, and the generator bearing, these are all need to be specifically checked, to see if there is wear is relatively large, or loose. If there is no problem, it is necessary to check the timing chain of the engine to see if there is any problem, and also to check the solenoid valve control on the engine.

Look at whether this kind of sound is made when you are working, these aspects need to be checked specifically.

Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

In this case, you can hear this sound, if you feel that it is in the engine compartment, then you need to check the engine motive, check the belt of the engine, including the pulley bearing tensioner, as well as the water pump, and the generator bearing, these are all specific checks, to see if there is a large wear, or the branches are loose. If there is no problem, it is necessary to check the timing chain of the engine to see if there is a problem, and also to check the solenoid valve control on the engine. Look at whether this kind of sound is made when you are working, these aspects need to be checked specifically.