-
Many car owners complain that the noise of their cars is getting louder and louder, what is the reason?
-
This is normal, because the electromagnetic fan is working, and the electromagnetic fan is controlled by the air conditioning switch and the water temperature, which means that it will work as long as any condition is met. When the air conditioner is turned on, the electromagnetic fan automatically turns on to dissipate heat. When the water temperature reaches 90 degrees at idle, the electromagnetic fan will also work to dissipate heat.
So you'll hear the whining of the fan spinning in both cases.
-
Make it clear if it's the sound of the piece, if it's a fan, or whatever.
-
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.
-
The main reasons for the loud engine sound are as follows: 1. The noise generated during acceleration, you need to pay attention to whether the noise is normal. If you have heard noise before, you need to compare it with what you have heard before, and if the whole car looks too loud, it will also affect the sound volume.
2. The abnormal noise fault of the engine is often obviously related to the working cycle of the engine. In particular, the abnormal noise of the crank connecting rod mechanism and the gas distribution loss and tremor mechanism is related to the duty cycle. 3. The oil filter is not good, the rubber ring is poorly sealed, the oil pump cannot pump oil normally when it is working, and a large amount of air is sucked in, resulting in insufficient lubrication of the engine system.
Especially in the hydraulic tappet part of the valve, there will be a metal knocking sound. In addition, a clogged filter can also cause the oil to fail and not be able to suck into the engine lubrication system properly, resulting in poor lubrication.
-
Almost every car that has been driven for a long time will increase the engine noise and vibration. This phenomenon is easy to explain, the engine will age, and with the aging will definitely bring problems of one kind or another.
1. Most of the vibrations are pots with machine foot glue.
Although it is true that the engine body will wear out a little with the increase of years of use, and the accuracy of various fits inside the engine will be reduced, this is far from the level that will cause significant vibration. The engine vibration is intensified, and in most cases it is a problem with the foot glue.
The so-called foot glue is called engine shock absorber seat. In fact, it is a few rubber blocks that are padded between the engine and the metal frame. Because the engine is running at high temperature for a long time, and rubber itself is very sensitive to high temperature, so the aging of the foot rubber is inevitable.
The solution is very simple, just replace the foot glue. But this operation requires lifting the engine.
2. There is basically no solution to the abnormal noise in the interior.
In addition to the sound of the engine, the most common thing in old cars is all kinds of strange interior noises. Some of the abnormal noises can't be distinguished at all. In most of these cases, it is a problem of abnormal noise in the interior.
Why does the interior make abnormal noise? The interior of a car is made up of many parts, including seats, panels, equipment, and miscellaneous things. These things are basically all screwed or glued in place.
The glue hardens over time, and after hardening, friction between the parts makes a sound. The place where the screws are fixed will be loose for a long time, and there will be abnormal noises if they are loose.
3. Increased wind noise? Check the door seals!
The increased wind noise is most likely to be the fault of the door seals. Quite simply, one of the main functions of door seals is to seal the vehicle and prevent excessive wind noise from entering the cabin. The door seal is also made of rubber, which will harden after a long time, and of course it will not be able to stop the air leakage after hardening.
This is relatively easy to solve, distinguish which side of the door is the most noisy, and replace all the door sealants on that side. It also directly replaced all the sealant strips on all doors of the whole car.
However, there is a certain chance that the wind noise is still so loud after the change, then it is very likely that the sound insulation glue has hardened in places such as wheel arches, engine compartment firewalls or trunks.
-
What kind of sound is it, and there are many reasons why the engine is loud, such as: Abnormal sound of the belt and tensioner. The engine detonation, the valve sounds, the engine lacks a cylinder, and a cylinder does not ignite. These can affect the sound of the engine.
-
This needs to determine whether it is caused by engine accessories or internal problems, listen to the car if it is the generator pulley falling wheel abnormal noise can be replaced, if it is the internal sound of the engine to see if the car needs to change the oil, or the oil quality is not good, change the oil to try, or there is no improvement, you need to specifically judge the sound position dismantling and checking!
-
Many car owners complain that the noise of their cars is getting louder and louder, what is the reason?
-
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 loud engine is related to the following factors. You can refer to it according to your own situation.
1. Gasoline with the wrong label, or gasoline is unqualified.
If the car needs 97 gasoline, but adding 93 gasoline will not only shorten the life of the engine, but also make the exhaust gases more likely to turn black. At this time, the car engine.
The sound is noticeably louder.
2.The nozzle atomization will also cause abnormal engine noise.
3.Shock absorber.
Fault. When the shock absorber is not working properly, the problem of high engine noise arises.
4.The oil pressure is insufficient or there is a problem with the canister solenoid valve. Insufficient oil pressure will make the timing chain not work properly, making the engine abnormal noise when the vehicle is started, but it will disappear when the vehicle warms up.
5. The cylinder liner or piston is worn or the cylinder is pulled.
This is fairly common. If this happens, it should be inspected by a specialized maintenance agency.
6.Cooling water.
Issue. If the cooling water temperature is too low, it can cause problems and make the engine more noisy. In this case, we should check the replacement in time to avoid other problems.
In addition, there are other situations where the engine can also experience abnormal noises, sometimes even loud, such as supercharger surge, crankshaft.
The follower spindle has different shafts, the supercharger bearing is damaged, and foreign matter enters the turbocharger.
Turbine or compressor impellers, crankshaft thrust clearance is too large, spindle pads are different shafts, piston rings are broken or worn, etc.
As the core component of the operation of the car, the abnormal and abnormal noise of the engine often means that there is a problem with the normal replacement of the vehicle, which must be taken seriously and mastered with relevant knowledge in order to be prepared for any failure.
-
What is the reason for the louder engine sound: 1. The foot glue is old or loose; 2. Lack of automobile engine oil or aging and viscous automobile oil; 3. The engine is used for too long and the carbon deposition is serious; 4. The engine lacks cylinders; 5. Cold start; 6. The sealing strip is old and has lost the role of sound insulation.
-
No matter what the car, the engine sound will not be too small, if it is too big, change it to a better oil to try Zheng Feng. In my group of car friends, the comparison between the engine oil of the 4S first warranty and the better pure oil is different, and the sound volume is different. I wonder if your Odyssey is the same. Such as satisfied.
Your engine is getting louder, I don't know which sound you're talking about? If it is a chirping sound, it should be that the belt is loose and aging, and it needs to be checked. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】
Almost every car that has been driven for a long time will increase the engine noise and vibration. This phenomenon is easy to explain, the engine will age, and with the aging will definitely bring problems of one kind or another. >>>More
The Dongan 465 engine is not the Toan Mitsubishi we often talk about. >>>More
1. Clean the water tank regularly. Rust and scale can limit the flow of coolant in the cooling system, reduce heat dissipation, and cause engine overheating or even engine damage. Therefore, it is necessary to clean the tank regularly to remove rust and scale from it. >>>More
It is a phenomenon that the combustible mixture accumulated in the furnace boring burns at the same time instantly, so that the pressure on the flue gas side of the furnace suddenly increases. In severe cases, the pressure generated by deflagration can exceed the allowable value of the design structure and cause damage to the water wall, rigid beam, furnace top and furnace wall. There must be three conditions for the occurrence of deflagration (i.e., the three elements of deflagration), all of which are indispensable. >>>More