The engine is a bit loud, how does this need to be repaired?

Adjust the tightness of the timing belt, or replace the heavily worn timing gear.

Check the engine first, then'Find a professional to repair it.

Adjusting the engine lower plate screws should be better.

Tighten or adjust the screws of the engine lower guard plate, power belt, generator belt, etc., the belt will produce abnormal noise when the belt is aging or too loose or too tight, replace or adjust the tightness.

There is no need to repair it, it may just be that the screws are loose.

Probably because the engine is broken. It is possible to change to a new engine.

The engine's screws may be loose, or there may be a problem inside.

If the oil viscosity does not match the engine, carbon deposits can easily occur, resulting in louder engine noise.

It may be that the belt is too loose, or the screws are loose.

The engine has one or more cylinders that are not working properly, and the operation of the individual ignition coils and cylinder spark plugs needs to be checked.

The engine is a relatively delicate part, crankshaft and piston seal ring flywheel, etc., are required to have an accuracy of less than microns, and it is taboo to disassemble the engine. Especially for engines with higher mileage running, the internal parts have reached a higher level of running-in. If you rush to replace a component, you will upset the balance between the parts.

It will cause excessive wear and tear of other components, engine vibration and other problems, so after maintenance, the engine generally has an idle noise problem.

After the overhaul, it is quite a run-in period, at this time, it is necessary to follow the operation during the run-in period, and take care of it like a new car, after a long time, these problems will be solved.

There are several solutions to the loud engine sound: 1. The foot glue is aging or loosening: the foot glue is a rubber block between the engine and the frame.

Solution: Tighten or replace the rubber on the feet. 2. Improper use of engine oil: the viscosity of the engine oil does not match the engine, which is easy to produce carbon deposits, resulting in louder engine noise.

Solution, use the oil number on the car manual, do not mix different brands of oil. 3. Engine cylinder shortage: Engine cylinder shortage means that the engine has one or more cylinders that do not work normally.

To solve the problem, it is necessary to check the working condition of each ignition coil and cylinder spark plug.

Summary. Hello friends. About "What to do if the engine is loud?"

Provide you with the following related content: There are several symptoms and solutions for the loud engine sound: 1. Step on the accelerator pedal, you will hear the sound of banging coming out of the exhaust pipe, the sound may not be very loud, the car will not be abnormal when driving, and the fuel consumption will increase, it is recommended to check the muffler, and whether the exhaust pipe is damaged; 2. If there is a clicking sound when accelerating, it is recommended to check the ignition time setting, which may be overheated, carbon deposits in the engine, and the oil is not good, so you need to add high-grade oil; 3. The engine has a kicking sound, like the sound of a pencil hitting the table, which may be caused by:

There is dirt inside the engine, it is recommended to change the oil, filter, wash the engine, and other may be valve problems.

There are several symptoms and solutions for the loud engine sound: 1. Step on the accelerator pedal, you will hear a banging sound coming out of the exhaust pipe, the sound may not be very loud, the car will not be abnormal when driving, and the fuel consumption will increase, it is recommended to check the muffler, and whether the exhaust pipe is damaged; 2. If there is a clicking sound when accelerating, it is recommended to check the ignition time setting, which may be overheated, carbon deposits in the engine, and the oil is not good, so you need to add high-grade oil; 3. The engine has a kicking sound, like the sound of a pencil hitting the table, which may be caused by the fact that there is dirt inside the engine, it is recommended to change the oil, filter, wash the engine, and other may be valve problems.

There are the following solutions to the high engine noise: 1. If the engine noise is very loud and you want to insulate the sound, you can install sound insulation cotton on the engine cover, which can effectively isolate part of the noise. You can also install soundproof cotton in the door, which can also isolate part of the noise; 2. There are many reasons for the high engine noise, and the engine of some cars is relatively noisy when it leaves the factory; 3. Most of the noisy engines are in-cylinder direct injection engines, and many in-cylinder direct injection engines will make a clattering sound when they are running, in fact, this is normal, this is the sound of the high-pressure oil pump working.

Here's why:

Without adequate lubrication during cold starts, hydraulic tappets and mechanical rocker arms do not work properly to cause a rattling sound. The oil condition is not right: if the viscosity of the oil is too high or too low, the engine will make noise.

Insufficient belt tightness: The engine squeaks during operation. There is a leak in the intake and exhaust pipes

At the intake and exhaust pipes, gas leaks from the exhaust pipes, making noise. Poor fuel quality: Causes violent vibrations and sounds in the engine.

Loose plastic parts in the engine compartment: Noise from collisions between the engine workshop and the engine compartment.

The solution to the loud engine sound is: 1. The foot glue 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. Treatment: Tighten or replace the rubber on the feet; 2. Improper use of engine oil, on the one hand, if our oil viscosity and engine do not match, it will be 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. If the oil is too viscous, the engine will be overloaded and will also produce noise. Solution:

Use the oil label on the car manual, do not mix different brands of oil; 3. Engine cylinder shortage: engine cylinder deficiency mainly refers to the engine has one or more cylinders that are not working normally, which is generally manifested as: the exhaust gas flow discharged by the car has obvious intermittent conditions, and the exhaust pipe shakes violently, and the engine can be heard clearly"Sudden protrusions"Or a plop, plop sound.

Solution: It is necessary to check the working condition of each ignition coil and cylinder spark plug.