Exercise 1 5 hot car idle shaking, steering wheel and seat shaking, what to do

The steering wheel shakes when the car is idling, which is very common, and some car owners can feel a strong steering wheel shake when driving the car at high speeds, when the speed reaches 80-100km h or more. In this case, most of the problems occur in the tires of the car, because the uneven distribution of the mass of the whole part of the tire will cause the wheels to rotate at high speed, and there will be a dynamic imbalance state, which will cause the steering wheel of the car to shake seriously while driving. In this case, it is necessary to align and dynamically balance the tires of the car, and in serious cases, the tires must be replaced.

In addition to the tires of the car, there may also be shock absorber failure, frame deformation, excessive meshing clearance of the main and driven gears of the final reducer, etc. If the steering wheel shakes when braking while driving, then it is very likely that the brake force is too strong and too frequent, which may cause the brake disc and brake pads to overheat and deform when cold, causing the steering wheel to shake.

Generally, the symptoms can be solved after replacing the brake discs and brake pads. If the speed of the vehicle is not fast, but the steering wheel shakes, it is possible that the steering belt of the mechanical steering system will slip when the belt is too loose, which will also cause the steering wheel to shake, and there will be shaking and abnormal noise when the steering transmission system is loose and the gap is too large, but this situation is rare.

Hello, your situation must be the cause of excessive carbon deposits in the engine, and you need to clean up the carbon deposits in the engine regularly!

Is this more than a kilometer, causing serious carbon deposition, this clean up the throttle carbon deposition and replace the spark plug to see.

Clean the throttle, oil circuit, fuel injector, and replace the fire plug.

Isn't there enough oil, the oil can't be supplied.

Has your problem been solved? My car is the same, what's going on?

It could be a problem with a component in the drivetrain.

1. Engine mount: The function of the engine and gearbox mount is to suppress vibration. When they break, you will feel excessive vibration, especially at idle. You can self-diagnose by putting the car in neutral.

2. Timing belt: The timing belt plays the role of connecting the upper and lower parts, once damaged, the camshaft runs abnormally, resulting in the collision between the valve and the piston. Stretched, torn, or frayed belts can cause time inconsistencies, which can cause shaking.

This usually happens in high-mileage vehicles. If you start to see cracks, cracks, or loosening on the timing belt, replace it immediately.

3. Fuel intake: The engine doesn't like dirt, and the fuel injector and intake valve are even more so. If they are contaminated with dirt or debris, they will deliver an uneven amount of fuel in each engine cycle, resulting in high-frequency vibrations.

Technicians can remove dirt and can often avoid problems with high-quality fuels and additives that clean the fuel intake system.

Extended Information: How to Tell If Idle Is Unstable:

Observe the degree of shaking of the engine block, you can also ** the degree of shaking of the oil dipstick, the smooth dipstick handle is very clear, and the shaking dipstick looks double;

Observed from the engine tachometer or reading data block, the speed shakes around the idle expected value, or shakes violently on the side of the expected value, and the idle expected value in the program includes the standard idle value, the load (turn on the light, the automatic transmission is in gear, etc.) idle value, the air conditioning idle value, and the warm car idle value; Start the engine on the spot, sit in the seat and feel the body shake violently.

There are many situations, and it is recommended to try step by step.

1. Prepare a bottle of three barrels of fuel on the car, completely burn the oil in the fuel tank and add the prepared oil, go to the nearby three barrels to add fuel, and after adding oil, the N gear floor oil will be used for one minute, which can generally be solved.

2. Replace the fully synthetic engine oil, replace the air filter element, and the oil filter element.

3. If the above scheme cannot be solved, it is recommended to clean the carbon deposit.

The main causes of unstable jitter at idle:

1.Serious engine carbon deposits: Cars always have the problem of carbon deposits, including cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc.

When the engine has too much carbon deposit, it will affect the ignition energy, air intake efficiency and air-fuel ratio of the car, resulting in the unstable power output of the car, and the phenomenon of idle speed and acceleration jitter appears.

2.Unstable oil pressure: If you have been ruined, clean the engine carbon, clean the throttle, replace the oil pads and spark plugs, etc.

And when idling, you still find that the body shakes, it is recommended that you go to the 4S shop to check whether the oil 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, it will cause the body to shake.

3.Engine cylinder shortage: Engine cylinder deficiency mainly refers to the engine or cylinders of the engine are not working properly, which is generally manifested as:

The exhaust fumes coming out of the car are obviously intermittent, and the exhaust pipe shakes violently, and the engine shake can be clearly felt, sometimes accompanied by abnormal noises. This is mostly related to ignition coil failure.

4.Aging of engine parts: Shake in the car is also associated with the aging of the engine feet (also known as claw pads).

The engine foot is actually the shock absorber system of the engine. The engine feet are responsible for absorbing slight vibrations when the engine is running. If there is a problem with the engine base, these vibrations can be transmitted to the steering wheel and cab, causing vibrations at idle.

Solution; The best way is to clean the oil circuit, clean it regularly, and use PNF fuel additives to solve the above problems caused by carbon deposits. The fuel quality is not very good or the initial fuel of the new car 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, and the carbon deposition exceeds the standard, which is especially common for China VI vehicles. Only by maintaining and cleaning the oil circuit can we alleviate most of the problems step by step.

Causes and solutions of idle instability and jitter in hot cars: 1. Idle jitter is caused by carbon deposits inside the throttle and idle motor, and it can be solved by cleaning the throttle and idle motor; 2. The quality of gasoline is not good, resulting in poor nozzle atomization effect, and the mixture is not fully burned in the cylinder, so it will also lead to idle jitter. 3. The phenomenon of non-ignition of spark brother jujube Li plug causes one or more cylinders to not work, and it will also lead to idle shaking, check whether there are cracks in the ceramic part of the spark plug, and also need to check whether the ignition module is normal.

Causes and solutions of idle instability and jitter in hot cars: 1. Idle jitter is caused by carbon deposits inside the throttle and idle motor, and it can be solved by cleaning the throttle and idle motor; 2. The quality of gasoline is not good, resulting in poor nozzle atomization effect, and the mixture is not fully burned in the cylinder, so it will also lead to idle jitter. 3. The phenomenon of non-ignition of spark brother jujube Li plug causes one or more cylinders to not work, and it will also lead to idle shaking, check whether there are cracks in the ceramic part of the spark plug, and also need to check whether the ignition module is normal.

This situation may be caused by the following two reasons: one is caused by the idle speed setting is too low, so the accelerator pedal will not shake when it reaches 1000 rpm, you can try to turn it up; The second is the four fixed points of the suspension engine, only the two points of the horns are padded rubber, this structure determines that some cars will have jitter transmitted to the body when idling, and it cannot be felt if you do not pay attention. Suggestion.

Check whether the solar terms are dirty