-
Anonymous users2024-02-12The 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 will cause idle clickingIn addition, when the car starts cold, it will also idle and click.
1. Aging or loosening of the foot glue: The foot rubber 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 loose, the engine will shake, and in severe cases, there will be a "click" abnormal sound, which only needs to be replaced with a new foot rubber.
2. The mixture is too thick: when the engine mixture is too thick, the phenomenon is: it is difficult to accelerate after starting, and the engine runs unevenly; black smoke from the exhaust pipe, a rattling sound from the engine, and sometimes a gun; Engine power decreases, fuel consumption increases.
This is mostly related to carbon deposits, filter blockages, etc.
3. Abnormal sound of cold start: When the car starts cold, you will hear the abnormal sound of "da-da" in the engine compartment, in fact, this "da-da" abnormal sound is caused by the oil pump not fully establishing the oil pressure during cold start, resulting in the lack of lubrication of various components.
Precautions for idling.
Start the engine and allow it to warm to operating temperature. As you do with the fuel-air mixture, let the engine warm up a bit to make sure you're adjusting in actual operating condition.
Turn the idle adjustment screw to tighten. Turn the screws clockwise, no more than half a turn, and listen to the sound of the engine. Most user manuals have an optimal speed setting to idle, but if you prefer it higher or lower, you have some wiggle room.
Please consult the owner's manual for the number and the tachometer when adjusting.
-
Anonymous users2024-02-11This is the sound of the hood vibrating against the cushioning pad, which I was in the same situation as you before. Tighten the pad and it's gone.
-
Anonymous users2024-02-10What's going on with the "click" sound when idling
<> hello dear, glad your question What's the "da-da-da" sound when idling? The causes of abnormal engine idle speed are as follows:1
Generally, it is the sound of the valve or fuel nozzle, and the carbon canister solenoid valve also has this sound, but the sound is brittle; 2.Identification method: When idling, give some oil slightly before drying slightly to see if there is any change in frequency.
If the frequency does not change, it is the sound of the solenoid valve. If the frequency changes, it should be an abnormal noise at the valve. 3.
If you still can't hear clearly in the car, it's not a big problem. The vehicle will have a corresponding clicking sound, one is the sound of the injector working, the other is the sound of the valve, and there is a similar sound, which is the sound of the timing chain, but there is no Lu Qing and the click sound is different, there is a gla sound.
-
Anonymous users2024-02-09Hello. If it is a rhythmic clicking sound, it is generally the solenoid valve of the fuel injector, and the sound is normal. If it disappears sometimes, then it is the solenoid valve of the activated carbon tank that is working.
He will function as soon as there is air in the tank. When there is no air, the sound will disappear. The sound of clicking all the time is the sound of the fuel injector.
is normal,
-
Anonymous users2024-02-08<> "When the car idles with a clattering sound, it is usually caused by the hydraulic tappet, the concentration of gas mixture is too high, and the car's foot glue is faulty.
Hydraulic tappet: The hydraulic tappet will make the car make a clattering sound when idling, and the main reason for the hydraulic tappet is that the oil pressure of the car is too low. In this case, the owner should adjust the oil pressure of the car as soon as possible.
The concentration of the mixed gas is too high: If the concentration of the mixed gas is too high, it is easy to cause the engine of the car to not run evenly, the car to accelerate weakly, and the car will make a clattering noise. At this time, the car owner needs to send the car to a professional repair shop for the maintenance master to inspect and repair it.
Failure of the foot glue of the car: The foot rubber can not only effectively reduce the vibration caused by the operation of the automobile engine, but also play a role in fixing the engine.
After a long period of use, the foot glue will loosen or age, resulting in engine shaking and abnormal noise. If you want to solve this kind of problem, the car owner can replace the car with a new foot glue as soon as possible.
-
Anonymous users2024-02-07<> "When the car idles and has the sound of Da Kaihong, it is likely that the hunger is due to the sound of the solenoid valve in the engine; Because when the owner starts the engine of the vehicle, along with the engine starting, there is also a valve between the carbon tank and the intake pipe, this valve is opened, and the gasoline vapor and air will be brought into the cylinder for combustion, which will cause the engine to make a clattering sound.
Of course, it may also be caused by the aging of some parts, such as the aging of the foot glue will also cause this sound in the engine, but in most cases the engine may shake, once the shaking occurs, the owner needs to replace the foot rubber in time.
It is also possible that the engine has less oil during use, because the lack of oil or the deterioration of the engine oil will affect the overall lubrication of the engine, so that the engine will also make such a sound during use.
In addition, damage to the half shaft in front of the car can also cause the engine to make such a sound, especially when pressing the accelerator; This sound is usually high-pitched and harsh, and if you hear this sound, the owner needs to drive the vehicle to the repair shop and ask the maintenance personnel to replace the half axle in front of the car.
-
Anonymous users2024-02-06Summary. Hello dear! <>
The cause of a car's idling rattle is a damaged valve: the engine after the car is engaged"This is the sound of the valve, especially after the cool car lands, there is an abnormal sound because the oil pressure has not gone up at this time, and the valve has not been lubricated in place, just wait for a while. Inadequate lubrication:
In general, when the car starts cold, the engine sound will be slightly louder than when the car is hot, as long as the sound is uniform and soft, not harsh. This abnormal noise is caused by the fact that the gap between the cylinder wall and the piston has not reached the optimal size during cold driving, and the lubrication of the engine oil is not sufficient. Usually when the engine block temperature reaches about 95 degrees, the sound will return to normal.
Causes of engine oil: Inferior oil or not changing the oil for a long time, lack of oil, etc., can easily lead to increased friction between the valve and the guide and the hydraulic tappet, etc., so that the various sounds in the engine are louder.
What's going on with the car idling rattle.
The hot car idles and the left front tower rings, and the front of the car is pressed down a little and it doesn't sound.
Hello dear! <>
The cause of a car's idling rattle is a damaged valve: the engine after the car is engaged"Da da da, this is the sound of the valve, especially after the cool car lands on the car, there is an abnormal sound because the oil pressure has not gone up at this time, and the valve has not been lubricated in place, just wait for a while. Inadequate lubrication:
In general, when the car starts cold, the engine sound will be slightly louder than when the car is hot, as long as the sound is uniform and soft, not harsh. This abnormal noise is caused by the fact that the gap between the cylinder wall and the piston has not reached the optimal size during the cold operation, and the lubrication of the engine oil is not sufficient. Usually when the engine block temperature reaches about 95 degrees, the sound will return to normal.
Reasons for engine oil: Inferior engine oil or chain letter has not changed the engine oil for a long time, lack of engine oil, etc., which can easily lead to increased friction between the valve and the guide and the hydraulic tappet, so that all kinds of sounds in the engine are louder.
Kiss and smile, your situation is caused by the work of the carbon canister solenoid valve, because the magnetic valve of the carbon canister power return will realize intermittent switching action when working, which makes the idle clatter disappear when refueling, which is a normal phenomenon. Its function is to open the solenoid valve when idling, and the gasoline vapor and fresh air in the canister are sucked into the cylinder for combustion, which can reduce emissions to a certain extent. Leaky Mountain.
Is it normal. Kiss, this is not normal, you need to go to the repair shop to overhaul it. Avoid accidents. <>
Check the carbon deposit, when the carbon deposit inside the engine is too much, the gasoline sprayed by the cold start fuel injection head will be absorbed by the carbon deposit, resulting in the cold start mixture is too thin, and the gasoline adsorbed on the carbon deposit after the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixed gas becomes thick, and the combustible mixed gas of the engine is dilute and thick, resulting in idle shaking after cold start. >>>More
The idle speed of the manual gear car should be at 750 rpm (750 rpm). The idle speed of the automatic transmission should be at 850 rpm (850 rpm). If the idle speed is around 750 rpm but the body is shaking, then 1 may be that one of the spark plugs is not working. >>>More
There are several reasons for engine shake:
1. The engine has serious carbon deposits, and the most common car with serious shake is that the fuel injector throttle valve is too dirty or too much carbon; >>>More
IdlingWhen it is fast and sometimes slow, it is unstable, first check whether the mixing ratio is wrongCarburetorsIf there is a blockage, you can carefully clean the carburetor to check whether the intake pipe is leaking, and whether the valve clearance is too small or not closed tightlySpark plugsAnd whether gasoline is bad or not, etc. >>>More
The engine is already noisy, if it is abnormal, check whether the valve clearance is too large! Also, see if there is any loose belt.