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1. The car mixer is too thick, the combustion is not complete, and the exhaust gas discharged exceeds the standard, so it is necessary to check the air filter, throttle sensor and oxygen sensor;
2. Drive in the urban area, the front and rear cars are approaching, you open the external circulation, the outside air will come from your car, you observe whether there is a car in front of you and there is a smell of exhaust, if so, open the internal circulation, turn on the air conditioning fan to work, accelerate the movement of the airflow, and the taste is more obvious. It is recommended to open the internal circulation, and then open the window a little more, and avoid the exhaust gas ingress, and can exchange air;
3. Clean up the carbon deposits in the throttle and cylinder, and consider whether there is a problem with gasoline;
4. After the exhaust gas outside the vehicle enters the interior of the vehicle and the odor accumulated in the car (such as: the aromatic agent placed and the smell of human sweat and body odor, etc.) is mixed and precipitated, when the heater is turned on by the air conditioner, the precipitated odor particles will volatilize when they encounter a warm and humid air flow and merge with the air, so as to be smelled by people's sense of smell.
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Don't add fuel additives to your new car, don't let others fool you when you start a new car, your fuel injector throttle three-way catalysis will not have much carbon deposits, it is recommended that you go to the 4S shop to check, your car is under warranty even if it is repaired and replaced, and you will not spend a penny.
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1. Reason 1: The engine shake of the 8th generation Accord may be the shaking caused by the poor combustion caused by refueling when there are many fuel impurities.
2. Reason 2: If there is fuel that contains impurities and colloidal moisture exceeding the standard, it is useless for you to use any fuel, because the fuel itself does not have the ability to clean these substances, so you need to use detergent to clean these substances that affect combustion in the oil circuit.
3. The fuel tank was not cleaned regularly, and there was debris precipitation in the mailbox.
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Causes of jitter: The engine is aging, the power output is declining, and the original set idle speed is not enough to drive the air conditioner to work, resulting in jitter, which is a common phenomenon.
The solution is as follows:
Please clean the throttle first (do idle learning immediately after cleaning - this step is very important!). Check whether the spark plug and high-voltage coil are normal.
Check that the engine floor pads are in good condition.
After completing the above maintenance, an idle stabilizer is installed to increase the idle speed to more than 800, and the jitter can be basically eliminated.
Note: It is best not to omit the above steps at will.
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What is the cause of the engine shake of the 8th generation Accord Idle speed 650 700 750 There is not much difference, Shenyang is ethanol fuel, which may be the shaking caused by refueling when there are many fuel impurities. In fact, it is not, because once the fuel contains impurities and colloidal moisture exceeds the standard, it is useless for you to use any fuel, because the fuel itself does not have the ability to clean these substances, so you need to use a detergent to clean these substances that affect the combustion of the oil circuit. So how do gas stations try to avoid these impurities, moisture, etc.?
It is the regular cleaning of gas stations, and gas stations also need to clean underground oil tanks, not to mention private car owners. Now it's clear. I have also encountered the same problem, why the new car is so shaking, the problem is here, including the old car like most of the continuous slight shaking is caused by this reason, of course, the old car also has carbon deposition factors, because long-term combustion is not good, a large amount of carbon precipitation affects the combustion more intensely, and the old car is weak and shaky.
My experience is to use one to three divisions according to the size of the fuel tank, and the general additives can be added to the fuel tank, and the problem will be solved after the normal driving of the basic 1 to 3 tanks of oil, saving trouble and effort. You can learn from this real experience.
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The principle of the idle stabilizer is to increase the idle speed, that is, to increase the idle speed and increase the fuel injection to make the air intake and fuel injection of the mixture increase at the same time, increase the idle speed intake throttle valve to pay attention to timely cleaning, and increase the cost of fuel injection is fuel consumption. To put it bluntly, these two points are actually to change the mixture, so that the mixture can complete the standard mixture in the case of dirty oil circuit or large carbon deposit. It is a way to cover up the problem, not a way to solve the problem, and it also confirms that oil circuit cleaning is fundamental.
This kind of stabilizer is to cover the essence of the oil circuit needs to be cleaned, and at the same time, the balance bar device is also to cover up the essence of bad combustion and shaking. It's like I had fluid in my knee and needed to get rid of it, but I used an external device to make the effusion feel less serious, so I continued my long walk, and eventually the knee problem evolved into a more serious result, in fact, it is often the most important problem that needs to be solved that is not urgent. For example, when the child was a child and lived with the elderly, and finally became a little sister and a gangster, at this time, it was originally a problem that needed to be solved because it was not urgent, and finally it became an urgent and important problem that needed to be solved, and we were solving urgent and important things every day, in fact, the most important thing was that the things that needed to be solved but were not urgent were what we should focus on.
Just like a car, cleaning the oil circuit is a necessary but not urgent thing, but once it is found that the engine has evolved into an emergency, then it will become impossible to clean it.
Therefore, it is necessary but not urgent to use the oil circuit cleaning of the company on a regular basis, and the logic is clear. Only a clean oil circuit will solve the problem completely.
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What is the reason for the engine shaking of the 8th generation Accord The air filter is not a problem with the air intake, the oil and oil relationship you add when you go to the desert, if you don't shake when you go before, and add other oil after entering, it may be that there are many impurities in the local oil, and there is no good way to clean the oil circuit, because you can't solve this problem with better oil.
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Analysis of the causes of car shake:
1. Cold start jitter.
First of all, starting from the cold start, the main reason for the cold start body shaking is that the fuel combustion is insufficient, resulting in insufficient power of the car. The ignition energy is low, and when starting, especially when the temperature of the fuel and lubricating oil is low, more oil is required to meet the power. Over time, the pole gap of the spark plug gradually increases, resulting in a decrease in ignition energy and poor fuel atomization, which leads to the shaking of the body.
In addition, the ignition energy can also be reduced due to the aging of the ignition coil, the aging of the high-voltage wire of the spark plug, or the leakage of electricity.
2. Suspension system problems.
Body shake is also related to the aging of the suspension system. It is mainly responsible for filtering out the shake of the engine when it is running, and if there is a problem with the suspension, these vibrations will be transmitted directly to the steering wheel and cab, affecting the driving. When the engine is idling, it is easy to cause shaking when the electrical system in the car is turned on.
The engine will increase the load when the electrical appliances are turned on, causing the idle speed to drop, and to compensate for the jitter caused by the idle slip, the engine will automatically increase the speed by partially. So, when the electrical system, especially the air conditioner, is turned on, the engine will often shake. This jitter is likely to be caused by the aging of the shock absorber and needs to be replaced in time.
3. Tire problems.
For tires, the tire must be balanced once when the car is replaced with new tires and new steel rims, otherwise the steering wheel will be prone to shake when the counterweight is uneven. If you find that the tire weight is not equal, you need to add lead to the inside of the rim to average the weight of the tires on both sides. Whether it is a general steel ring or a lightweight aluminum ring, it may deform or crack when subjected to a certain external force.
Deformation of the rim can cause shaking when driving, uneven weight of the rim can also cause shaking when driving, and incorrect angle of the rim can also cause shaking when driving.
4. Throttle problems.
The most common cause of car shake may be a dirty throttle valve and excessive carbon build-up in the fuel injector. After the car travels for a period of kilometers, the throttle valve will be too dirty to cause the throttle to close loosely or the idle motor to stagnate, resulting in the engine idling speed is too high, and the carbon deposits generated by the engine in this process will also cause the vehicle to shake, especially when starting the vehicle, the engine will shake more than normal, and even sometimes there will be a phenomenon that can not be started at one time. Therefore, when the body shakes, the first thing to do is to check the throttle and fuel injectors.
If you find that the throttle valve is too dirty or the fuel injector has too much carbon deposit, you should clean it with fuel injector cleaner or throttle cleaner in time.
5. The oil pressure is unstable.
If you still find that the body shakes after these are finished, it is recommended that you go to the repair shop to check whether the fuel supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is not normal, the intake pressure sensor is wrong and improper work will cause the body to shake.
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The first cause of idle jitter is serious carbon deposition in the engine, and excessive carbon deposition inside the engine causes the combustible mixture to be dilute and thick, and then cause idle jitter after cold start. The solution is to clean the carbon deposits of the oil circuit, focusing on checking whether the idle motor has too much carbon deposits and cleaning it thoroughly!
The second reason for idle jitter is the ignition system problem, the working condition of the spark plug, high-voltage wire and ignition coil is unstable, the ignition system works poorly, and the spark plug flashing condition is not good, which will lead to the idle jitter of the car; The solution is to replace the spark plug (not to clean it).
The third reason for idle shake is the unstable oil pressure, if the engine and throttle carbon deposits, oil pads and spark plugs have been replaced, and the idle speed is still shaking, then it is necessary to consider whether the fuel supply pressure device, oil relief device and intake pressure sensor are normal, and the abnormal oil supply pressure of the oil pump or the wrong value of the intake pressure sensor will cause idle jitter; Be sure to go to a 4S shop to check the oil pressure and replace parts if necessary.
The fourth reason for idle jitter is the aging of engine parts, the aging of the engine foot (also known as the claw pad) will also cause idle jitter, the engine foot is the shock absorption system of the engine, it can absorb the subtle shake of the engine when it is running, if there is a problem with the engine foot, the slight vibration of the engine will be transmitted to the cab, which is manifested as idle jitter; The solution is to replace it!
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Idle jitter, the common fault phenomenon is that the throttle valve is too dirty. Causing the idle valve to get stuck, it is necessary to clean the idle valve at this time. On the other hand, it is due to the lack of fuel or ignition energy.
For example, there is less fuel injection or the ignition energy is too weak. The last one is that there is wear and tear on the machine, resulting in too large a fitting gap and air leakage.
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There are many factors that affect the idle speed of the vehicle, such as dirty throttle valves, dirty fuel injection heads, excessive carbon deposition in combustion, as well as malfunction of oxygen sensors, fire in spark plugs, uneven cylinder pressure, and poor valve sealing. Solving such problems should be dealt with from easy to difficult. For example, the throttle, injector head and combustion chamber are cleaned first, and then the spark plugs are checked and the claw pads are checked.
Then use the computer to measure the relevant data. In this way, the basic influencing factors of the vehicle are eliminated, and most of the vehicle shake problems will be solved.
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Hello, engine shake reason:
First, the engine lacks cylinders.
Engine cylinder lack mainly refers to the engine has one or more cylinders are not working normally, which is generally manifested as: the exhaust gas flow of the car has obvious intermittent gas, and the exhaust pipe shakes violently, and the engine shake can be clearly felt, sometimes accompanied by a sudden sound. This is mostly related to ignition coil failure.
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Dirty throttle valves, poor ignition coil contact, large spark plugs or rotten spark plugs, and rotten idle motors will cause idle shaking.
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The most common cause of engine idle shake is a dirty throttle valve or excessive carbon build-up on the fuel injector. In addition, ignition system faults, such as spark plugs, high-voltage wires, and ignition coils, can also be caused by poor operating conditions. In addition, if the oil pump supply pressure is not normal, or if the intake pressure sensor is wrong and not working properly, it can also cause the body to shake.
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If the car is shaking at idle, you need to check whether the lower throttle is too dirty, as well as the gap of the spark plug. air cleaners, etc. If there is a problem, replace it directly. The throttle valve is too dirty and can be cleaned.
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Idle jitter. Check to see if the ECU is faulty.
Then check the spark plug, check the cylinder pressure, check the cylinder line.
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1. ThrottleWhen we step on the accelerator, the vehicle has some shaking, and most of the time it is a problem with the throttle. When carbon deposits or other pollutants are adsorbed on the throttle, it will cause the amount of air inhaled by the engine to be out of proportion to the amount of oil sprayed out of the fuel injector, resulting in insufficient fuel when the engine is working, resulting in body shake. In this case, you can go to the repair shop to clean the throttle.
Second, the spark plug spark plug as the ignition device in the engine, if there is a problem with the spark plug, then there is no ignition of the mixed gas in the cylinder, and the cylinder will not work, so that the power of the vehicle will decline, which is what we call the lack of cylinder. If you drive a lot, when the vehicle feels a strong shake and the vehicle has no power, and this shake exists from the start of the vehicle to the shutdown, then most of the spark plug is a problem. At this time, it is necessary to check whether the spark plug in a cylinder is broken.
The spark plug is a consumable, for the car owner, the spark plug should be checked during regular maintenance, and the spark plug should be replaced in time if the spark plug is almost depleted.
Third, the rubber ball cover itself is a consumable part, the main role in the body is also to play the role of shock absorption and dustproof, generally installed in the connection between the engine and other components, when the rubber sleeve is damaged, when stepping on the brakes, you will feel that the vehicle has shake, release the brake shake and disappear, in this case you will have to check the ball cover. Fourth, brake pads, as an important part of vehicle braking, play a vital role in the safety of vehicle driving. As long as you drive, you will use the brakes, so the longer the time, the more the brake pads are worn.
When the brake pads are worn more, when the brakes are applied, the braking effect will be reduced, the body will shake, and there will be some sizzling sound at the wheels when braking. Then it's time to check the brake pads and replace them in time. For the sake of our driving safety, we must check the vehicle in time and replace the damaged parts.
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