GL8 2 5 Sometimes the throttle can t be stepped on, what is the situation when you shake hard?

Hello friends, now the 4S store is so irresponsible, it will only solve the visible, and the hidden dangers will not be changed during the warranty period unless you give money! That is, no problem with the direct owner of the car! It's not easy for the owner to fight for him!

But we feel like something is wrong! It should be normal to run one hundred and three, small cars have this ability, and your situation is definitely not a car resonance! If the car resonates, it can't be done, the resonance is determined by the car itself!

I give two opinions! First, you can do it yourself, check the tire pressure, the front tire pressure should be the same, and the rear tire is the same! Second, if you replace the tire, the tire has a slight deformation, because you have to 13 to have that phenomenon, the naked eye can not see that there is a problem with the tire, only from the front tire one by one to see if the phenomenon will disappear!

Thirdly, the elasticity of vibration damping is different, you can feel the flat road and the road surface with waves, whether the vibration reduction has a different feeling! If the above can't be solved, go for wheel alignment! Remember to open the new car without problems, because no matter how good the machinery and equipment are, there will be problems!

Hope it helps!

Go to the tire shop and balance the four tires.

In general, it is caused by improper lifting angle, improper toe-in and low tire pressure. But some cars may have problems with their design. Buick should be able to solve the problem after doing four-wheel alignment.

There are many reasons why a car can't be refueled, and the main reasons are:

1. The fuel is too dirty;

2. The fuel nozzle is blocked;

3. The fuel filter is blocked;

4. The fuel pressure regulator fails;

5. The working condition of the electric fuel pump is poor;

6. Throttle position sensor failure;

7. Computer (ECU) failure;

8. Insufficient cylinder pressure, etc.

Solution: First, check the oil pump of the mailbox to see if it is working properly. This work is a bit tedious, you need to remove the rear seat, open the fuel tank, and take the oil pump out for inspection. It may be caused by too many impurities in the oil pump and the oil cannot be absorbed.

Second, check if the gasoline grid is working properly. If the gasoline grid does not work, it may also cause the oil to not be filled.

In addition, the air intake system is clogged, such as the air filter. Inspect the air intake system and make professional repairs.

Then, see if it's a battery problem. Insufficient battery power may cause the voltage output to be unstable. The solution is to clean the battery frequently and replenish the electrolyte.

In a short period of time, including stepping on the accelerator in the morning, it will basically not affect the car, and stepping on it for a long time will be a kind of car destruction.

In three ways:

1. From the mechanical principle, step on the accelerator in neutral gear, although the gear is empty, but the power of the engine through the clutch will drive the input shaft of the gearbox to be in the state of working ** movement, at this time step on the accelerator.

2. In addition to the output shaft and the synchronizer of each gear, the gearbox does not rotate, like the input shaft and the intermediate shaft (here the three-shaft gearbox is taken as an example, one shaft is the one that contacts with the clutch, and the second shaft is the one connected with the transmission shaft, and there is also an intermediate shaft. The first axis and the second axis are on the same axis, which seems to be together, but they are actually separate. One shaft is connected to the clutch, which is called the input shaft.

The two shafts are connected with the transmission shaft, which is called the output shaft. The rest are the intermediate and reverse axles. The intermediate shaft is integrated with the gear and the shaft, and the reverse shaft is the shortest.

Of course, the structure of each gearbox will be different) and the normal gear on the shaft will change with the speed of the engine.

3. Long-term neutral fuel throttle or long-distance neutral slide is harmful to the gearbox, which is easy to cause problems such as wear, ablation and abnormal sound of the input shaft bearing, synchronous gear and synchronizer.

If you notice significant body shaking when starting or stopping the vehicle without turning off the engine, it may mean that the vehicle has one of 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.

Buick GL8 engine shakes, add the throttle will not be, what is the reason, the car idle motor on the throttle transfer cooker. It is mainly used to bear the idle speed of the car, and its purpose is to adjust the idle speed according to the engine load at the time of idling, and the idle jitter can check the pointer fluctuation of the idle speed meter, and the general performance is not good combustion, if it is a new car, there will be no problem of damage to the idle components, because the combustion requirements of the turbo direct injection vehicle are very engaged, or clean the oil circuit first, before the idle pointer fluctuation idle jitter in the fuel tank after adding the Si Youpu fuel additive to run two tanks of oil is completely good.

Buick GL8 engine shaking, adding the throttle will not be, what is the reason Now many new cars quasi-new cars will encounter idle shake in the morning sometimes cold start difficulties, these are actually nothing to do with the accessories, the first kilometer is very small, the probability of damage to the accessories is extremely low, the second most of the current domestic fuel is ethanol fuel, engine direct injection technology is the mainstream technology, which leads to the engine advanced technology and high compression ratio and fuel technology stagnation contradictions, resulting in bad combustion and shaking. Third, ethanol fuel is highly volatile, and after 9 days of complete deterioration, there will be a lot of water in the fuel tank to corrode the oil pump, and the oil circuit will also cause colloidal impurities to exist at the same time due to deterioration, which will cause bad combustion and a large amount of carbon deposition will be produced if it is injected into the combustion chamber. Carbon deposits can cause more jitter and problems.

The most serious is long-term carbon deposition and high-temperature burning of engine oil. Fourth, the gas station does not turn China Petroleum and Petrochemical to clean the oil tank within 2 months, the underground oil storage tank is so good to be closed, why should it be cleaned, the smell of the second and third points mentioned above, so it's not correct for the owner not to clean his oil circuit, the long-term will inevitably cause problems, the fifth use of high-grade fuel can be alleviated, which is wrong because the 98 detonation point is higher, you feel better for the time being. It can be 98 and it will fail because of long-term poor burning, what do you add?

The most fundamental thing is to completely solve the problem, and it cannot be said that 98 is used to cover up the phenomenon of bad burning. The number of kilometers in your car is very small, and it is not a problem with the accessories, but the oil road is dirty. Wash down.

The gas station cleans the oil tank once in February, and if our private car is never cleaned, it must be a problem with the oil. Dirty oil, impurities and oil are added to the car. The oil with more impurities and adhesive tape will burn poorly, and the shaking, long-term idling and shaking will affect the high temperature of the winter work, and the oil will be burned in serious cases.

After a long term 98, it is the same as jitter, how much fuel do you add, so 98 just covers up the problem is not a ** problem. In my experience, I have changed the accessories many times for the irritability phenomenon of idle jitter to no avail, and I have tried many times with different brands of additives to no avail, and I can't solve it by contacting 4s, there is only one answer, normal, all like this. In the end, it was solved by chance by a master from the repair shop of the street shop.

In the fuel tank added two national VI standard fuel additives division + there & Pu, this kind of detergent cleaning agent, let me run two tanks of oil, the first time to use it to relieve a lot, to the fourth tank of oil when it was completely smooth. I am now 5000 maintenance on the use of once, the car has not been a problem, the shop also asked how good, I just smiled faintly.

This can be caused by excessive carbon build-up in the throttle, intake tract, intake valve and combustion chamber. Due to the excessive carbon deposit and dirt in the inlet duct, the cross-sectional area of the air passage changes, so that the control unit cannot accurately control the idle air intake, resulting in too thick or too thin mixture.

At the same time, it is also necessary to check the working status of the fuel injector, and whether the pulse width of the fuel injection volume is up to standard. An endoscope is also used to check whether there is too much carbon deposits in the intake valves and combustion chambers. Check the throttle idle motor, check the spark plug degree, check the coil and cylinder wire, and check whether there is a lack of cylinder.

There are several reasons for high engine speed:

1) Ask the engine air intake system leakage: It has been repaired through maintenance, and the cause of this problem has been ruled out;

2) Damage to engine exhaust pressure regulating valve: It has been repaired through maintenance to rule out the cause of this problem;

3) There is a need to increase the rotational speed: for example, the seat is heated or the air conditioner is turned on.

4) Insufficient battery charging voltage: The battery manager increases the power generation by increasing the engine speed.

Check whether the throttle cable is stuck and check whether the idle motor is faulty. Whether the throttle is issued or not.

First of all, see whether the instrument light reports a fault code, if not, please do the following steps in turn 1: confirm whether the cylinder is lost, and the engine idle speed will have obvious jitter when the cylinder is lost 2: secondly, see whether the throttle is dirty, resulting in insufficient throttle opening, and clean it.

3: Whether the spark plug needs to be replaced, whether the gap of the spark plug is qualified, replace it 4: whether the fuel injector is aged or stained, clean or replace 5: move the air intake sensor by hand to see if it is loose, (the probability is very small, because it shakes violently after the failure).

6: If the above methods are not working, replace the ignition coil and high-voltage wire.

7: If it has not been solved, it is necessary to hit the cylinder pressure to see if the cylinder pressure is enough.

Have you ever tested it with a computer? There are many reasons for this, ignition, fuel injection, air intake system can all lead to. In addition, various sensors also have an impact. It is best to use a computer to detect the fault code first.