The Mazda 3 has a problem with body shaking after the speed exceeds 80 yards

When the vehicle travels to a speed of more than 80 kilometers per hour, the vehicle shudders, and in severe cases, the whole body shakes, and this fault has nothing to do with whether the vehicle is accelerating or decelerating at that time, but only related to the speed. This failure is caused by a dynamic imbalance of high-speed rotating parts of large mass, including: steel rings, half shafts, etc.

In the process of driving, the vehicle will inevitably cause the deformation of these parts, thereby changing their dynamic balance, even if there is no obvious deformation, due to the attachment of some sediment-like foreign bodies, it is enough to cause the vehicle to shake. In addition, if the connectors of the chassis suspension part are worn loose after long-term use, this phenomenon will also be caused. It is recommended that you check the replacement of deformed parts, check the inside of the steel rim for mud and sand, and then dynamically balance the tire steel rim.

It is recommended that you conduct an on-site inspection based on the above analysis.

Easy car netizens.

Mazda3 speed over 80 yards after the body shake problem, engine shake generally has several situations, gear start shake, cold start, three-way catalytic temperature is not enough, the engine carbon deposition is serious cause of car shake, is the throttle is too dirty or the fuel injector is too much carbon, because the gasoline adsorbed on the carbon deposit after the car is sucked into the cylinder by the engine for combustion, the combustible mixture of the engine is dilute and thick, resulting in idle shake after cold start. Solution: Siyoupu cleans the oil circuit and checks whether the idle motor has carbon deposits and should be cleaned.

1.The Mazda3 engine shakes badly, which may be due to heavy carbon buildup inside the engine, carbon buildup in the fuel injector, and faulty throttle position sensors.

2.When the carbon deposition inside the engine is excessive, the gasoline sprayed by the cold start fuel injection head will be absorbed by the carbon deposition in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, until the gasoline absorbed by the carbon deposition is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposition 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.

3.The carbon deposition of the fuel injector will cause the difference in the amount of fuel injected by the fuel injector of each cylinder, resulting in engine shaking or caring; When the spark plug has too much carbon deposit, the spark plug leakage cannot work and the engine shakes; When there is too much carbon deposited at the throttle, it can also cause problems such as difficulty starting, idle shaking, and acceleration shutdown.

4.Also check that the throttle position sensor is working properly. At the same time, it is also necessary to check whether there is any false phenomenon in the tie.

The Mazda3 engine shakes badly, usually caused by a cylinder not working.

This is all a common problem, it must be blocked by carbon deposits, buy a bottle of Si Youpu first clear the door of the air, a bottle can almost do.

Hello! Generally, the first thing to do is to distinguish whether the idle speed is too low or the cylinder is missing.

If the idle speed is too low, you can clean the throttle.

If that doesn't work, you need to use a computer to check the data stream to see if there is any problem with the air intake.

If there is a lack of cylinder, it is necessary to overhaul the fuel injection system, ignition system, cylinder pressure, and timing!

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The speed of the car shakes at 50 80. It is usually caused by tire deformation or tire imbalance.

1.The chassis needs to be checked by lifting the vehicle. If there is no problem with the chassis, do 4-wheel dynamic balancing.

2.Check the tires when you do four-wheel balancing. Replace the tire if the surface of the tire is deformed.

3.If it is to shake the speed when the speed is increased, replace the half shaft without shaking after the oil is collected.

What is the reason why the Mazda 6 has jitter at a speed of 50-80 yards.

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

Hello, I am your exclusive technician, he is the first to be careful, attentive to answer your car problems, for you to find the corresponding problem solutions and solutions! The speed of the car shakes at 50 80. It is usually caused by tire deformation or tire imbalance.

1.The chassis needs to be checked by lifting the vehicle. If there is no problem with the chassis, do 4-wheel dynamic balancing.

2.Check the tires when you do four-wheel balancing. Replace the tire if the surface of the tire is deformed.

50 to 80 yard body shake is not caused by aging of the engine rubber sleeve.

If the rubber sleeve of the engine is aging, the car will shake more when it is idle and in D gear.

It doesn't shake when it comes to D gear, and it's very shaky when you speed up to 50 to 80.

Then check the tires.

When driving at low speeds, it is normal for the vehicle to have a slight jitter. But if the shaking is very severe, check the ignition and fuel system, or clean the air intake system. The section bend is poor valve.

If there is too much carbon accumulation in the dirty fuel injector, the throttle will be dirty after the car has been driven for a certain period of time, which will cause the throttle to close poorly or idle.

The stuckness of the stepper motor can cause the engine idle speed to be too high, and the carbon deposit generated by the engine in the working process will also cause the vehicle to shake, especially when starting the vehicle, the engine will shake more than normal, and may even fail to start at one time. Therefore, when the vehicle is shaken, the throttle and fuel injector should be checked first. If you find that the throttle valve is too dirty or the fuel injector has too much carbon deposit, it should be cleaned in time.

The engine foot is actually the shock absorption system of the engine, and the engine foot is responsible for absorbing the subtle shaking of the engine when it is running, and if there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel.

In the cab, jitter occurs when idling. Car engines.

In the idle state, the vehicle shakes most easily when the car's electrical system is turned on. In order to compensate for the jitter caused by the idle slide, the engine will automatically pull up the speed to increase the speed of the engine due to the increase in the negative burden or load caused by the electrical system. Therefore, when the car's electrical system is turned on, especially when the car air conditioner is started in the summer, the engine often shakes.

If the jitter in the idle state will not be due to the on-board air conditioning compressor.

This kind of jitter is likely to be caused by the old skin of the engine foot, and it is necessary to replace the new engine foot in time. Uneven tyre weighting is also a cause of judder. Generally, when the car is replaced with new tires and new steel rims, it is necessary to do a tire balance, 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 be deformed or cracked when forced by a certain external force. Rims.

Deformation, uneven weight of the rim and incorrect angle of the rim can all cause shaking while driving.

The engine shakes seriously when running at medium and low speeds, which indicates that some cylinders in the engine gear are not working or working poorly, resulting in unstable engine operation and shaking. Usually, the causes of engine cylinder non-work or poor work are mostly ignition system, poor work of fuel supply system or inconsistent compression pressure of each cylinder. Because there is more white smoke discharged from the exhaust pipe, and the smell of gasoline is very strong, it means that there may be too much gasoline entering one or several cylinders, resulting in the combustible mixture being too thick, and the combustion is incomplete or cannot be burned at all.

The immediate cause of this is likely to be a failure of the injector, or a faulty injector control circuit, or it may be that the spark plug of some cylinders does not skip.

Another situation is caused by the unbalanced deformation of the transmission shaft, which generally occurs in the chassis collision of more cars. Body shake at idleIdling body shake at idle speed is a common situation encountered by many car owners. If the owner finds that the body shakes significantly while starting the vehicle or stopping the vehicle without turning off the engine, it may mean that the vehicle has one of the following three conditions:

1.The most common cause of car shake caused by serious carbon deposits in the engine is that the throttle valve is too dirty or the fuel injector is too much carbon. When the carbon deposit inside the engine is excessive, the gasoline sprayed by the cold start fuel injector head will be absorbed by the carbon deposit in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by carbon deposit is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposit after the car will be sucked into the cylinder by the vacuum suction force of the engine, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing idle shaking after cold start.

The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon deposits will affect the smooth cold start.

Solution: Clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned.

2.Ignition system problems Check the working condition of the spark plug, high-voltage wire and ignition coil, the ignition system is not working well, and the spark plug flashing condition is not good will also lead to this kind of failure.

Solution: Check whether the spark plug has too much carbon deposit, and replace the spark plug.

3.If the oil pressure is unstable, if you have cleaned the engine carbon deposit, washed the throttle, changed the oil pad and spark plug, etc., and still found that the body shakes when idling, it is recommended that you go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is abnormal or the intake pressure sensor value is wrong and the work is not good, the body shakes will be caused.

Solution: Check the oil pressure of the loose mold and replace the parts if necessary.

Causes of unstable car idling;

Throttle oil and throttle carbon deposits, dirty intakes, blocked intakes can cause idle pulling, throttle carbon deposits or oil are the most common causes of unstable idling.

Spark Plug Failure: Weak sparks caused by individual spark plug failures can also cause carbon deposits, which can be cleaned to restore spark plug activity, but some spark plugs have a fast lifespan and can reduce performance.

Blocked oil circuits: There are also oil circuit blockages and intake pipe failures represented by fuel injectors. When the oil circuit represented by the injector is blocked, the fuel supply pressure is insufficient, the fuel atomization is poor, the mixing ratio is unbalanced, and the combustion is incomplete, which leads to the failure of Changying return.

Specific solutions to idle jitter:

1. The engine has serious carbon deposits. The most common cause of idle judder is excessive carbon build-up on the throttle or injector. When there is too much carbon deposit inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by the carbon deposit, resulting in a mixture that is too thin and making it difficult to start.

After landing, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine and burned, which will thicken the mixture. The mixture is sometimes dilute and sometimes thick, which will cause idle jitter after cold start. The lower the temperature, the greater the amount of oil required for cold starts, and the more the presence of carbon deposits affects cold starts.

The solution is to clean the carbon deposits at the throttle and injector.

2. Poor ignition system and poor ignition of spark plugs will also lead to engine idling and shaking. If there is a problem, check if the ignition system is faulty and if there is too much carbon deposited in the spark plug.

3. The oil pressure is unstable. If you have cleaned the engine carbon deposits, cleaned the throttle valve or replaced the spark plug, and there is still the problem of body shaking when idling, it is recommended to go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal. If the oil pump supply pressure is abnormal or the intake pressure sensor is incorrect, it will also cause the body to shake when idling.

Solution; The best way is to clean the oil circuit, clean it regularly, there is no specific experience in the research and development parameters of the clean engine from the new car, coupled with the continuous improvement of emission standards, can not adapt to the change of fuel, all manufacturers of the engine are unable to solve this jitter problem in the short term, plus the fuel quality is not very good or the initial fuel of the new car factory is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and cause no good fuel to participate in combustion in the later stage. The occurrence of carbon deposits exceeding the hunger resistance standard is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits. The use of PNF dope fuel additives can solve the problems caused by carbon deposition.

Summary. It may be due to excessive carbon deposits in areas such as throttle valves, fuel injectors, intake valves, combustion chambers, and intake pipes. These deposits can block the idle channel and cause the idle control to get stuck or out of its range, resulting in low idling, unstable idling, and fuel consumption.

It is also necessary to check whether the pipes in the carbon canister system are damaged, and the gasoline vapor will be directly discharged into the atmosphere along the damaged place, resulting in air entering the engine intake tract instead of fuel vapor, which will inevitably cause the engine mixture to be too thin, resulting in a failure phenomenon. However, this requires an on-site inspection to determine the specific cause of the failure, and I hope mine will be helpful to you.

It may be that there is too much carbon deposit.

Fellow, I really didn't understand, I can be more specific.

It may be due to excessive carbon deposits in areas such as throttle valves, fuel injectors, intake valves, combustion chambers, and intake pipes. These deposits can block the idle track channel and cause the idle control device to get stuck or out of its adjustment range, resulting in low idle speed, unstable idle speed, and fuel consumption. It is also necessary to pay attention to the situation and check whether the pipes in the canister system are damaged, gasoline vapor will be discharged directly into the atmosphere along the damaged place, resulting in air entering the engine intake tract instead of fuel vapor, which will inevitably cause the engine mixture to be too thin, resulting in a fault phenomenon.

However, this requires an on-site inspection to determine the specific cause of the failure, and I hope mine will be helpful to you.