The Camry engine has a spark plug with carbon deposit, and the engine has an abnormal sound when the

Hello, the author believes that there are the following possibilities, please check and exclude them one by one:

1.Ignition systems, including high-voltage packs, ignition wires, and spark plugs, will have similar symptoms when the temperature is too low due to ignition system problems;

2.Oil supply or carbon deposit, clean the oil circuit, replace the 3 rate and oil, and then after the car is warmed, hang 1st gear, step on the accelerator to the end, let the engine enter the oil cut off area, for 5 minutes, if there is an improvement, it is regarded as a carbon deposition problem, you need to re-check the air intake, determine whether there is loose air leakage, and clean the throttle (after cleaning, it is best to maintain the driving habits during the run-in period, and the fuel consumption will rise slightly to the normal phenomenon).

3.Oil problem, due to the low temperature in winter this year, whether the oil meets your local extremely low temperature, due to poor oil lubrication, resulting in increased engine running resistance, resulting in unstable operation and vibration, it is recommended to change the winter oil, and warm up the car for 2 minutes, and then drive.

I hope it helps, welcome to ask!

Hello, there is carbon deposition means that the engine has the phenomenon of burning oil, and the abnormal noise is also the sound generated by the aging of the engine, which means that the engine needs to be repaired. I hope to be able to help you with more questions**** car master wishes you a happy driving. [Car questions, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

The common causes of abnormal noise of automobile engine are as follows: 1. Engine knocking. The phenomenon is the abnormal sound of the engine making a "bell".

The engine knocks on the cylinder, mainly because of the sound caused by the piston skirt hitting the cylinder wall when the engine is running. It is usually due to poor lubrication conditions. The solution is generally to replace the four sets of the engine.

2. Abnormal sound of intake and exhaust system. For example, an air intake manifold leaks a noise that occurs when idling and intensifies as the engine speed increases. 3. The engine has a "hissing" noise, which is likely to be caused by a problem with the cooling system, resulting in overheating of the engine.

4. The engine has a "squeak" abnormal sound, especially when the air conditioner is turned on. In this case, it is likely that the belt of the engine is slipping. 5. The engine has an abnormal sound of "clicking", which is likely to be carbon accumulation in the engine.

It is recommended to use high-grade gasoline. In reality, there are many types of abnormal engine noises in automobiles. For example, the abnormal noise of the engine during rapid acceleration, the abnormal noise of the engine during cold start, the abnormal noise of the engine in the idle state, etc., should be analyzed differently in each case.

It is recommended to go to a 4S shop or a professional auto repair shop in time to let the maintenance personnel check, and only by determining where the problem is, can the symptoms be repaired.

There are many reasons for abnormal noise in the engine, which need to be judged on the spot.

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! First, it just sounded like a fire.

First check whether the oil level is normal and whether the oil pressure is normal. Second, if there is no problem, remove the generator belt to see if there is any change in the abnormal noise, if it is no problem to warm the car, check the oil quality first.

It's normal to have a hot car.

Hello, I am your exclusive technician family closed bucket, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solution and solution! First, it just sounded like a fire. First check whether the oil level is normal and whether the oil pressure is normal.

Second, if you don't ask the state question, remove the generator belt to see if there is any change in the abnormal noise, if the hot car is okay, check the oil quality first.

Good. Uh-huh.

The fire sound was loud when it was just started, and it was normal after a while.

Check the oil level first.

The car has been in the underground parking lot.

Uh-huh. Well, it's possible that the oil is not sufficiently lubricated when starting a cool car.

Stop for a few days and be like this in the morning. Uh-huh.

There are the following reasons for the buzzing of the Camry fuel valve engine: 1. The hum caused by excessive carbon deposition: it is divided into excessive carbon deposition in the engine, excessive carbon deposition in the throttle, excessive carbon deposition in the spark plug, etc., and you can go to the repair shop to clean it.

2. Buzz caused by poor filtration: the most common is that the air filter is too dirty to go to the repair shop to clean or replace. 3. The purity of gasoline is not enough

The carbon deposits formed inside the machine, such as No. 90 gasoline, are not as good as No. 93 gasoline, and can be completely replaced with high-grade gasoline. 4. Spark plug aging: engine problems, cylinder problems, and idle speed problems need to go to the maintenance shop for engine maintenance.

The screws at the interface of the three-way catalytic converter are loose: the thermal expansion and contraction after the flame is turned off will cause the abnormal sound to be more obvious. 2.Damage to the magnetic valve of the canister: It is easy to cause the deformation of the fuel tank and make a sound.

On the issue of abnormal noise of automobiles, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. In the case of a turbocharged engine, there is a must be a difference between the sound and the sound of a naturally aspirated engine; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, it is likely that the socks themselves lack the understanding of mechanical knowledge, so as to distinguish the abnormal noise of the car and avoid wasting time and energy.

How to identify the sound of a car:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of Gaohui's car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will emit a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation of the car without repair.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, to amplify the sound with a whirlpool, or to reduce the sound by using a single cylinder fire cut-off to meet the needs of the diagnosis. The auscultation site should be kept quiet to minimize human interference.

The causes of the engine rattling sound are: engine knocking; valve squeak; engine tempering failure; Lack of cylinders in the engine; Engine timing adjustment error; The oil was not changed; loose plastic parts in the engine compartment; Abnormal sound of engine belt;

There may be a variety of reasons for the abnormal noise of the Camry automobile engine, which needs to be analyzed according to the different conditions of the axle slide. Among the more common reasons include: lack of oil in the engine or insufficient oil pressure, which can be solved by checking the oil volume and oil circuit; If the valve or piston fails, it is necessary to check the wear and positioning of the valve and piston, and replace or repair it in time; Belt slack, unreasonable design, wear, etc., need to be adjusted, replaced or maintained with a suitable belt in time; Cooling system failures and so on.

If there is an abnormal engine noise problem, it is necessary to go to a professional automobile maintenance station as soon as possible for inspection and repair in time to avoid greater safety hazards and losses of Jingmin Shiji.