The engine accelerates loudly and ignites at idle

Hello master, what kind of car are you. What a displacement. How many kilometers ran.

1. Solution:

When the engine idle speed is unstable, the idle speed should be adjusted first, if the fault can not be eliminated after the idle speed adjustment, the idle speed measuring hole and the idle air measuring hole should be checked whether it is blocked, if the measuring hole is blocked, it can be cleaned with gasoline or acetone and blown through with compressed air; If the measuring hole is not blocked, the engine speed should be stabilized at a certain speed, and whether there is air leakage in the intake manifold or carburetor or the lower gasket. If the idle speed is unstable and accompanied by the decrease of engine power, the working condition of the spark plug, the sealing performance of the valve and the ignition time should be further checked, and the maintenance and adjustment should be carried out if necessary.

Second, the reasons for its occurrence are:

The idle air measuring hole is blocked, the idle device is not working well, the spark plug spark of individual cylinders is too weak, the individual valve is not tightly sealed, the intake manifold is leaking, the ignition time is too early or too late, and the idle speed adjustment is improper.

Hello, in this case, you first have to go to a professional repair shop to read the fault code with a computer, check the data flow, and prescribe the right medicine! I hope you will fix your car soon. Let's go and see if there is any fault code storage.

It should be said that there is a problem with the engine, and it should be sent to the repair shop for inspection and repair, after all, driving safety first!

It is recommended that the 4S shop go to the inspection or the big repair shop to check the specific fault.

This has to be checked, so I don't recommend you to go to a 4S shop or repair shop to check it.

The cause of noisy engine idle can be too much oil, carbon deposits in the engine, or loose cup pads. Here's a closer look at the causes of loud idling and the type of engine: Too much oil:

Non-standard oil or too much oil added will cause unnecessary resistance to the rotation of the crankshaft, which will affect the power output; Engine carbon deposition: During the frequent use of the car, the engine fuel consumption is insufficient, resulting in engine carbon deposition. Loose cup feet:

The machine mat is aging or loose, affecting the engine and making noise. Engine type: power is divided into diesel engine, gasoline engine, electric vehicle motor, hybrid; The air intake system is divided into naturally aspirated, turbocharged, mechanically charged, and dual-pressed.

There are several reasons why the engine is noisy at idle:

1.The gearbox's floor pads are broken. The gearbox's floor pads are just starting to break.

The key is that the tremor vibrates violently, causing the body to resonate and the vibration in the car becomes larger. If it is completely broken, it will affect the gear, it will be difficult to change gears, and once the gearbox needs to shake once the gears are shifted, the impact can be felt in the car. Over time, it will have a relationship with the gearshift of the gearbox.

2.The engine cushion is broken. Because the gearbox and engine are rigidly connected together, the gasket of the gearbox is damaged, and when it turns, it will cause shaking and vibration, and the engine will also shake and vibrate. After a long time, the brake pads of the engine will also have problems.

3.If the car has just started, most of the lubricating oil and lubricant in the engine basically flow to the bottom of the oil casing due to gravity, affecting the moment of starting, and cannot be lubricated immediately. When the car is hot, the sound will be reduced.

Since you can't see the actual car, you can't make an accurate judgment. For example, the piston has carbon deposits, the intake system is faulty, the ignition spark energy is insufficient, and the cylinder pressure is abnormal. It basically affects the engine sound.

It is recommended to go to a 4S shop or a professional auto repair shop immediately to let the technician test, determine the problem, and repair the symptoms.

Finally, () Bian Xiao is honored to answer your question, about the loud sound of the car's idle engine? I have some opinions on this issue, and I hope you can find it helpful after reading it! If necessary, Bian Xiao is here waiting for your visit.

The problem of high idle noise of automobile engine, and also collect information on the Internet about the high idle noise of automobile engine. Let's share it with you to understand.

1. The engine is loud when the car is idling, which may be due to:

2.The transmission floor pad is broken. The gearbox mat just started to break, and the vibration was violent, causing the body to resonate and balance, and the vibration in the car became larger.

If it's completely broken, it will affect the shifting gear, it's difficult to change gears, the transmission will shake in the car, and you can feel the impact. Time affects the gearshift of the gearbox.

3.The engine saddle is broken. Because the gearbox and the engine are rigidly connected, the gaskets of the gearbox are damaged, and they will shake when running, causing the engine to shake. Over time, there will be problems with the engine's brake pads.

4.If the car has just started, various lubricating oils and lubricants in the engine flow to the bottom of the oil casing due to gravity, resulting in timely lubrication at the moment of starting. When the car is hot, the sound will be reduced.

5.Since you can't see the actual car, you can't make a definite judgment. For example, carbon deposits in the pistons, faulty air intake systems, ignition spark energy, and abnormal cylinder pressures can all cause the engine to become louder.

It is recommended to go to the shop or auto repair shop in time to let the technician check and determine the problem, and then repair the symptoms.

I hope it helps you through this article, and this is the end of the article.

The noise of the idle engine is loud, and the trembling feeling of the car is caused by the unstable operation of the engine, and the cylinder pressure, ignition spark energy, throttle sensor, idle motor and engine mat should be checked to see if they are normal. It may also be related to air intake. Jitter is caused by engine deflagration, and carbon deposits on the piston can also lead to this phenomenon.

Other causes and solutions for loud idle engines:

1. Weather reasons: The cold weather causes the engine idle speed to increase, and the cool car engine always maintains a high speed, and the engine sound will become louder. This situation is normal and there is no need to worry, almost all cars will have an increase in engine idle speed in winter.

When the car is hot, the idle speed drops.

2. The plastic parts in the engine compartment are loose. For example, the engine cover, air intake pipe, etc., can be tightened. Abnormal noise of the engine belt. Including booster belts, generator belts, etc., the belt aging or too loose, too tight will produce abnormal noise, replace or adjust the tightness.

3. The oil condition is wrong: the engine oil is an important component of engine lubrication, and when there is a problem with the engine oil, it will affect the working condition of the engine. When the viscosity of the engine oil is too high, it is easy to cause problems in the operation of the engine, and the lubrication effect becomes poor, resulting in friction during the operation of the engine, resulting in noise.

4. Valve leakage: the valve leakage sound is outside the valve door, which is more significant at high load and low speed, and the sound is enhanced with the increase of load, the main reason is that when the valve seat is reamed, due to improper operation or excessive wear of the inner hole of the valve guide, the valve seat is inclined or the valve gap is small, resulting in valve ablation and the valve is not tightly closed and the air leakage sounds. Remove the cylinder head, grind the valves, check the spring elasticity of the valves, and adjust the valve clearance from the beginning.

Photo by Li Linwei) @2019

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.