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The situation you mentioned may mean that the vehicle has the following three conditions:
1.The engine has a lot of carbon deposits.
The most common cause of car shake is a dirty throttle or excessive carbon build-up in the fuel injector. When the carbon deposition inside the engine is excessive, the gasoline sprayed by the cold start fuel injector 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, in this case, only when the gasoline absorbed by 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 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.Problems with the ignition system.
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 tripping condition is not good, which 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.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 shake will be triggered.
Solution: Check the oil pressure and replace the parts if necessary.
4. Aging of engine parts.
Car jitter is also related to the aging of the engine feet (also known as claw pads). The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorbing the subtle shake 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 and cab, causing shaking when idling.
Workaround: Replace the parts.
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It's a little shaky, it's a little bit that smoke hurts, it's a little bit there.
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See if the clip is broken. If not, go to the pits. If a three-cylinder car. It is estimated that they are all shaking. It's normal.
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The up-and-down jumping of tricycles and electric vehicles while driving is the cause of loose tires.
Most of the electric wheel hubs are made of aluminum alloy steel rims, and a few low-cost cars are made of carbon steel, which has been exposed to wind and rain for a long time, and naturally there are some small cracks, with the thermal expansion and contraction, the electric wheel hub will burst, in addition, the wheel hub will be subjected to severe impact, and subtle deformation will occur. Causes jitter to occur during driving.
Tire rubber is made, there is a cord layer in the rubber layer to protect the rubber to resist tension, when the cord layer is partially broken, the tire will have a "pimple", causing the tire to lose its roundness, showing a "dancing style", and the front handle "ups and downs" shakes, resulting in shaking of the car.
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When the tire is installed, there is no installation balance, and by observing the circumference of the tire and comparing it with the steel rim, it is easy to find the problem, release the gas, and recalibrate the outer tire.
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Is it a problem with the engine?
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Hello, we are Xuzhou science fiction controller manufacturers, your situation belongs to the driving switch to low gear, because this simple shift differential box does not have a clutch, will produce the phenomenon of playing gears, if the gear is broken, the box will produce abnormal noise, if there is no abnormal sound means that the gear is not broken, but if you often operate like this, even if you do not break the gear, it will cause the gear gap to become larger, the noise of the differential box will increase greatly, pure manual typing, thank you for adopting.
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How to shake? Swinging from side to side can be deformed tires, loose screws, or broken bearings. If the handlebar is shaking badly, it may be that the front tire pressure is too much, and it is good to let go of some appropriately.
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The main thing is that the wheels are not right, or the air pressure is too high.
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Engine trembling: Mainly through several aspects of the analysis of the cause of car engine shaking, can be through the following aspects to troubleshoot the problem, to provide convenience for car drivers. Method Step 1
Dirty air filter: The air filter is designed to protect the engine and reduce wear, generally replaced in about 10,000 kilometers, if the replacement is not timely, it will cause low idle speed due to insufficient air intake, and the engine shakes, as long as the filter element is replaced, it can be solved. High Voltage Line Break:
High-voltage wire disconnection refers to the disconnection of the high-voltage wire core, which can affect the ignition and cause the engine to shake. 2.Spark plug life:
The spark plug has a lifespan, and the ignition efficiency is significantly reduced after more than 3-40,000 kilometers, and can affect the ignition, which is the most common failure. 3.Low idle speed:
The engine idle speed value is set in the computer, and when the number of revolutions is low to a certain range, the car computer will automatically adjust it. If the idle speed is too low and the jitter is beyond the control range of the computer, some cars have adjusting screws on the throttle to adjust the idle speed, and some cars can not adjust, this kind of car can check the idle valve, throttle, air flow meter, vacuum sensor, adjust the ignition time (car with distributor), you can increase the idle speed. Low idle speed can occur even when the water temperature is low, so you can check and replace the thermostat.
4.Abnormal water temperature: There is a normal range of engine operating temperature, and high water temperature will cause early ignition time, change in oil-oil mixing ratio, thinner oil viscosity, and poor lubrication performance.
The general fault cause is the jitter caused by the lack of antifreeze, the thermostat cannot be opened, the fan does not rotate, and the temperature of the temperature control switch is inaccurate. 5.Fuel injector clogged:
The fuel injector of the EFI vehicle is a key component of automobile fuel injection, and the service life is very long, which can reach hundreds of thousands of kilometers. However, because there is gum in the gasoline, the fuel injection hole of the fuel injector will be blocked, so the amount of fuel injected by each fuel injector is inconsistent, resulting in the inconsistent work of each cylinder and causing the engine to shake. The solution is to remove it and clean it.
7.Carbon deposition and oil scale blockage: The throttle valve, idle valve, and air intake hole will be blocked by carbon and oil scale after a period of use, and the air intake will be poor, which will affect the stable idle speed and shaking.
It is necessary to inspect and clean the above parts with cleaning agent, and there is no need to remove them for cleaning. 8.Cylinder pressure is low:
The engine has 3 cylinders, 4 cylinders, 5 cylinders, 6 cylinders, and 8 cylinders, and if one cylinder does not work well, there will be a lack of cylinder and the engine shakes. Three-cylinder engines are the most obvious, followed by four-cylinders. Check the cylinder pressure with the cylinder pressure gauge, and solve the fault of low pressure with the relevant products.
It has a unique effect on low cylinder pressure and unbalance. It can be added to the engine oil or directly added to the cylinder to restore the balance cylinder pressure. Precautions Engine idle value:
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If you find that the vehicle shakes badly after the car starts, it is an indication that the vehicle has an abnormal situation, and it is necessary to stop and check it in time to avoid more serious dangers.
1. It is inevitable that the engine will produce carbon deposits, but when the carbon deposits are too much in the engine, it will cause the engine to work poorly and produce different faults. When there is too much carbon deposit inside the engine, the gasoline sprayed out by the cold start fuel injector will be absorbed by the carbon deposit, resulting in the mixture of cold car start is too thin, making it difficult to start, until the gasoline absorbed by the carbon deposit is saturated, it is easy to get started, and the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the vacuum suction of the engine after landing, so that the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing idle shaking after the cold car starts. Workaround:
Clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned.
2. For vehicles below 3 cylinders, it is mostly normal when the vehicle shakes, and the 3-cylinder car itself shakes badly. If the vehicle with more than 4 cylinders, if it is more serious than usual, check whether there is any abnormal situation in the engine compartment, whether there is a cylinder that does not work or multiple cylinders work poorly, the common symptoms are that the spark plug is burned, the spark plug gap is too large, or there is a loose situation, the vehicle will shake, then stop and carefully check whether the spark plug is complete, and there are tools to remove the spark plug to check it. There is also poor oil supply, poor oil lubrication, etc., and you must go to the maintenance point in time to repair it if you can't get it yourself.
3. Sometimes the tire pressure is insufficient, or there is a problem with the balance, which is easy to cause the vehicle to tremble, so it is necessary to carefully check the tire pressure to see if the tire is abnormally worn.
4. The clutch is separated and shakes unclearly, and the cause of the failure.
1) The rear end face of the inner end of the separation lever is not in the same plane, the compression spring is uneven or individually broken, and the pressure plate has grooves.
2) The pressure plate and the driven plate are warped and deformed, the rivets of the friction plate are exposed, the surface of the friction plate is oiled, and the spline groove of the driven plate and the first shaft spline tooth of the transmission are seriously worn.
3) Loose fixing bolts of the engine suspension, transmission and flywheel housing, clutch cover, flywheel, etc., will cause the clutch to tremble at the start of the car.
Fault judgment and troubleshooting.
The engine is running rapidly, hang a low gear, and then slowly lift the clutch pedal to start, if the car shakes, it is the clutch shuddering.
1) Step on and lift the clutch pedal, check whether the separating bearing is flexible in advance and retreat, if it is astringent, it means that there is oil between the separating bearing and the conduit, and it should be cleaned.
2) Check whether the inner end of the separation lever is in the same plane, if not, it should be adjusted according to the regulations.
3) Check the fastening of the connecting bolts of each part, if there is any looseness, it should be tightened according to the specified torque.
4) Check whether the main and driven disc are warped and deformed, the friction surface is grooved and the friction plate rivet is exposed, if so, it should be repaired. Spring breaks should be replaced, and uneven elasticity should be arranged or replaced symmetrically.
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There are several reasons that are possible: 1. Lost cylinder, uneven ignition, faulty ignition system, and individual cylinders can not be ignited in time. The exhaust sound will also change accordingly.
2. The shock absorption is aging, the claw is loose, and the engine is not properly fixed. Open the hood, slam down the throttle, and the engine will become smooth as the engine revs up. 3. The frame is too loose.
Some old cars, the carriage is too loose, and it starts to shake endlessly as soon as it starts. 4. The oil is not good, and the ignition is too early. Inferior fuel does not reach the mark, burns poorly, and causes the engine to shake.
Increasing the rpm will not improve either. 5. The engine accessories are fixed loosely. At the same time, there will be abnormal noises.
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Possible causes of engine shake are:
Blocked air cleaner causes idle speed to be too low.
A cylinder does not work or works poorly.
The oil pump is not in good condition, and the oil pressure is unstable.
Carbon deposits in the combustion chamber.
Carbon accumulation in the grease nozzle and uneven fuel injection.
The cylinder is worn, and there is air leakage.
The valve is not closed tightly.
The idle speed is low. High Voltage Line Break:
The water temperature is abnormal, and the feedback of the temperature control switch is not accurate.
Occasionally, if the cylinder is missing, the fault light will not be lit.
In the event of a recurrent fault, the engine EPC light will give an alarm.
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There are several possibilities for engine shake.
1."The air filter is dirty, clogged, and not replaced in time, or the high-voltage line is broken and affects the ignition and causes the engine to shake.
2.Engine shake caused by spark plugs not being replaced in time or low fuel pressure.
3.Dirty throttle valves, clogged injectors, or low cylinder pressure can cause engine jolting.
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Several possibilities. 1.Tire pressure is unbalanced.
The lower tire pressure needs to be adjusted. 2.Balancing.
The tires are flicked. It will also shake the big 3Damaged engine floor pads of the engine.
The engine will shake when it is running. If the mat is damaged. The cushioning effect is reduced.
Jitter is generated. It is recommended to go to the 4S store for inspection. Peace be upon you.
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1. The deformation of the front wheels of all vehicles, the damage of the front wheel bearings, the damage of the front axle, and the vibration of the diesel engine will cause difficulties in grasping the direction.