What is the reason for the noise inside the diesel engine?

There will be a rattle inside the engine, it may be that a certain part of the engine is faulty, or the parts are loose, or the matching gap is out of balance, or the combustion is abnormal, etc., then the engine will have abnormal noise in the work. The cause of the squeak is that the gap between the valve stem and the valve guide is too large.

If you use a poor-quality fuel, which causes the engine to vibrate violently and make noise, in this case, the engine noise can be reduced by replacing the fuel with better quality. If the engine is noisy due to aging and loose engine parts, this situation is generally tightened or adjusted.

Causes and solutions of high noise in automobile engines:

1. The machine foot glue is aging or loosening the machine foot glue; It is the rubber block between the engine and the frame. Its function is to reduce the vibration and cushioning of the engine when working, and to have the effect of fixing the engine. Once these feet are aged or loosened, the engine will shake, and the faster the speed, the louder the shaking will be.

Solution: Tighten or replace the rubber on the feet.

2. Improper use of engine oil; On the one hand, if the oil viscosity does not match the engine, it is easy to produce carbon deposits, resulting in louder engine noise. On the other hand, if the viscosity of the oil is too low, it will cause insufficient lubrication and wear of engine parts to produce abnormal noise; If the oil is too viscous, the engine will be overloaded and will also produce noise. Workaround:

Use the oil number on the manual and do not mix different brands of oil.

3. The engine lacks cylinders; Engine cylinder lack mainly refers to the engine has one or more cylinders are not working normally, which is manifested as: the exhaust gas flow of the car has obvious intermittent intermittentness, and the exhaust pipe shakes violently, and the engine can be clearly heard or plop, plop sound. Workaround:

It is necessary to check the operation of the individual ignition coils and cylinder spark plugs.

4. Engine carbon deposition; When there is too much carbon deposition inside the engine, the ignition energy, air intake efficiency, and mixture ratio of the car will be affected, resulting in the unstable power output of the car, and the idle speed and acceleration will shake, and the noise will also be transmitted to the cab. Solution: It is recommended to go to the 4S store to prescribe the right medicine and carry out the engine cleaning project to remove carbon deposits.

My advice is to check where the sound comes from, whether it is in the crankcase or in the valve chamber or the periphery of the engine such as generators, air conditioning pumps, etc., and at the same time, it is recommended that you do not turn on the oil light again, it is likely that the oil pressure is not enough to cause engine wear.

Should you add oil, to see the oil ruler, how can you judge it casually, oil added, will increase fuel consumption, the engine will also increase the load, the engine is also damaged, it is estimated that you hit this, the engine should not have a problem, maybe the plug of a sensor around the engine is loose, first find a professional repair shop, use the computer to detect it, to see if there is a problem with the circuit, if the circuit does not alarm **, then check the engine peripheral mechanical failure, the engine should not move easily.

Summary. Hello, I am happy to answer your car master exclusive technician to answer your car questions sincerely and sincerely for you, and find solutions and methods for you to ask questions. The engine has an abnormal sound, like the loud sound of a diesel car, this sound generally appears in two places, the first place is that the valve clearance is too large, at this time it may be that the oil is insufficient, or the oil pressure is insufficient, resulting in the valve hydraulic jacking tube can not be expanded after being compressed, at this time, the valve will appear too large a gap and there is a clicking sound, the second situation is that the gap between the piston and the cylinder liner is too large, or the cylinder liner is strained.

This condition can be examined using an endoscope, and if a strain is found just after arrival, the engine needs to be overhauled.

Abnormal engine noise, like a diesel engine clattering?

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Hello, I am happy to answer your car master exclusive technician to answer your car questions sincerely and sincerely for you, and find solutions and methods for you to ask questions. The engine has an abnormal sound, like the loud sound of a diesel car, this sound generally appears in two places, the first place is that the valve clearance is too large, at this time it may be that the oil is insufficient, or the oil pressure is insufficient, resulting in the valve hydraulic jacking tube can not be expanded after being compressed, at this time, the valve will appear too large a gap and there is a clicking sound, the second situation is that the gap between the piston and the cylinder liner is too large, or the cylinder liner is strained. This condition can be examined using an endoscope, and if a strain is found just after arrival, the engine needs to be overhauled.

Is it possible that the oil filter is blocked?

It is possible that if the oil filter is clogged, the cold car will be loud and the hot car will not be so loud.

Summary. Hello, it is normal for the diesel engine to clatter when it is refueled, because when the diesel engine is cold started, the engine sound will be slightly louder than when the car is hot, as long as the sound sounds uniform and soft, and it is not harsh, there is no problem Oh I hope the above will help you<>

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Hello. Hello, it is normal for the diesel engine to make a loud noise, because when the diesel engine starts cold, the sound of the engine will be slightly louder than when the car is hot, as long as the sound sounds even, the lack of slippery softness, not harsh, no problem Oh, I hope the above will help you<>

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Your praise is the infinite motivation for me to answer the question [you know how to make silver].

I ran normally and turned off the fire.

Hello, this situation is generally due to the decline in the quality of the dry oil, poor lubrication, there will be a lot of noise, you need to check whether the oil level is normal, if it is too low, you need to replenish it in time, if the color turns black, you need to change the oil in time, increase the oil pressure, increase lubrication, reduce noise, timely maintenance to ensure that the car is stable, comfortable and safe, thank you.

The sound of the diesel engine is buried and humming, hello! The muffled humming of the engine is likely to be related to the vehicle's air intake system, and if the air intake system is clogged or aging, it needs to be dealt with in time, such as the air filter has been used for a long time, and there will be a lot of particles. The sound of the engine is muffled and humming, which may also be due to the use of engine oil that does not meet the label, such as the suitable one should be selected when choosing the engine oil when making a car, and the label should not be too high.

The three-way catalytic converter of the vehicle has the problem of blockage, and it is easy to cause the engine sound to be muffled, as well as the situation of buzzing, you can check the three-way catalytic converter, if there is a blockage problem, it can be cleaned or replaced. Hope it helps!