What happens when the automatic car runs to 140 and suddenly the rev speed increases without speedin

Will your car be able to upshift or downshift properly? If not, there may be a problem with the throttle opening sensor as well as the output shaft speed sensor of the automatic transmission. Automatic transmission shifts are based on two main data:

throttle opening; output shaft speed; If there is a problem with either of the sensors of these two data, the car will not be able to gear normally, according to the situation of the landlord, it should be the automatic transmission mistakenly thinking that the car has been climbing the high-load condition, so even if the engine speed is high, it cannot raise the speed. Of course, if your transmission can go up and down normally, that's a different story.

This should have reached the limit of this prominence, so there is no way to speed up anymore, 140 is already very high.

The inside of the gearbox is slipping, the engine revs high, and the speed is not high.

The automatic transmission car runs to 140, and the speed suddenly increases without speeding up, he may not have enough power, he can't run so much, and the speed limit is already there, isn't it that there is a fault, you should drive to a professional 4S shop to see.

When the automatic car runs to 140 and suddenly does not speed up, you can try to loosen the throttle and then step down. This speeds things up.

The speed limit means that the maximum speed of the automatic transmission model you are driving is only 140 kilometers per hour, and no matter how fast it is, you will not be able to run.

Try to change the oil first, this problem is more serious and you need to disassemble and check the gearbox.

The test has nothing to do with whether you have automatic transmission, it mainly depends on the size of your car's displacement, if the displacement is large, continue to improve, and there is still space.

Now he has reached the highest speed without speeding up, which is the safest.

Go to the repair shop and check it out.

This problem is not a problem, when the gear is not changed, the speed is directly proportional to the speed, and the speed rises and the speed also increases. You may be using Sport or the manual gear in the automatic manual transmission.

The former usually changes gears above 3000 3500 rpm. The latter, if you don't actively change gears yourself, will keep the gear in low gear and allow you to drive above 6000 rpm. The only thing that could go wrong is when the automatic transmission is damaged, at which point the gear automatically locks into 3rd gear in order to get you to the pits.

But usually in this case, it will be displayed on the dashboard.

Gear description. P - Parking, Parking, Starter Gear. When you don't use the park, the gear is here, and the wheels are in a mechanical locking state to prevent slipping.

r - reverse, reverse. Used when reversing.

n - neutral, neutral. When stopping temporarily (e.g. at a red light), use this gear. Note that this gear indicates neutral gear, and to prevent the vehicle from slipping on slopes, be sure to apply the brakes.

D - drive, forward gear, also known as drive gear. Needless to say, when moving forward, use this gear. If it is hung to "D", it can automatically go up to fourth gear; When you feel that the speed is too fast downhill, you can leave D gear unloaded.

L-Low, low gear. When going down a hill or going down a long-distance slope, hang the gear here, which can limit the gear of the car to automatically only be in the lowest gear (equivalent to the first gear of the manual transmission car), which can make the car use engine power to brake when going downhill, and the driver does not need to step on the brakes for a long time to cause the brake pads to overheat and cause danger.

S - Sport, which means sports mode, when this gear is engaged, the gear can be switched freely, but the timing of the shift is delayed, so that the engine can maintain high rev for a period of time, so that the power of the car increases. Obviously, this gear will increase fuel consumption.

OD - OD gear is a speeding gear, which is used at high speed to achieve the purpose of fuel saving.

Driving on the accelerator and suddenly no power may be a problem with the oil pump, you can add the fuel pressure gauge to test the car, dynamically observe whether the oil pressure is normal when the vehicle fails, the fuel valve is not good, the fuel tank is particularly dirty, and the fuel tank is troubleshooting after cleaning (while replacing the gasoline filter element and cleaning the fuel pump).

While driving, if there is no need to slow down or stop, the right foot should continue to press the accelerator pedal (if the car with electronic cruise is enabled, it is not necessary to press the accelerator pedal continuously), if it is necessary to slow down or stop, the right foot should be removed from the accelerator pedal, and the brake pedal should be pressed if necessary.

Hello owner, according to your description should be the vehicle gearbox upshift delay is too high, this situation should be the gearbox oil is too dirty, the gearbox internal solenoid body is blocked or damaged, it is recommended that you go to the repair shop to read the fault code of the gearbox with a computer, according to the fault code to specifically judge and analyze the fault point, I hope to help you, if you have any questions, you can continue to consult, I wish you a happy life! Happy family! [If you have a problem with the car, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

Did you accidentally hang on to the manual transmission with your hands?

You release the throttle, step on the throttle again, and the speed goes up.

[If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

1) Oil circuit blockage First check whether the steam filter is blocked, whether the pump pressure of the gasoline pump is sufficient, and whether the fuel injector is blocked.

2) The exhaust system is blocked, check whether there is any blockage in the three-way catalytic converter and the entire exhaust pipe.

3) It may be that the throttle has too much carbon deposit, the idle position sensor, and the air flow meter are damaged.

Whether there is a fault in the automatic transmission under the computer diagnosis [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The reasons may be:

1. The failure of the gasoline pump and the blockage of the fuel filter will also cause the engine power to decrease.

2. The engine is faulty.

3. Clutch slippage, clutch slippage is mainly manifested in the acceleration of the car while driving, resulting in the weakness of the driving wheels.

4. Engine oil circuit system, long-term shortage of oil, light power is insufficient, fuel consumption increases, heavy piston hits the door, so that the relevant connectors are mechanically damaged.

The solution to the high speed but can't raise the speed of the car:

First of all, we should check the transmission hydraulic oil.

If the oil level height is too low or too high, you should find a good adjustment, and then see if the gearbox is still slipping. If it is still slippery, then the quality of the hydraulic oil should also be checked, if the hydraulic oil is brownish-black or has a burning smell, it means that the friction pads or brakes of the clutch or brake are burned, and the transmission should be dismantled and repaired.

In addition to this, we can also do road tests to determine the automatic transmission.

Whether it is malfunctioning or not, dial the joystick into a different position and let the car go. If an automatic transmission.

Move up to a certain gear.

When the engine speed suddenly increases, but the speed does not increase accordingly, it means that there is slippage in this gear. The more likely the engine speed to increase during skidding, the more severe the skidding.

Check the level of the transmission oil and adjust it if it is too low or too high. Because the oil level is too low and too high, the oil leakage of the gearbox will easily cause the oil pump to suck air, resulting in poor lubrication and slippage caused by insufficient action.

At the same time, it is also necessary to check the quality of the transmission oil, if it is brownish-black or has a burning smell, then it means that the transmission oil is very dirty, and it will even block the oil circuit, causing the transmission valve body to work abnormally.

Precautions for driving automatic transmission cars.

It is necessary to pay attention to the automatic transmission vehicle starting, for its own heavier weight models, to overcome the inertia needs a large torque, so the "oil fixing" operation method can be adopted: step on the clutch after the gear slightly preload the throttle, so that the engine speed is stable at about 1500rpm is more appropriate, and then according to the fast, stop, slow three methods of slow release of the clutch, such a starting vehicle is more stable and powerful, and at the same time less noise.

When the automatic transmission vehicle shifts, when the speed reaches 20 yards, the speed can be changed at 1500-2000 can be shifted to 2nd gear, when the speed reaches more than 2000, 3rd gear can be shifted, so that it is close to 30 yards, and the same is true when the speed reaches 50 yards, you can shift to 4th gear. This is due to the fact that 2000rpm shifting is prone to carbon deposits, so the suitable speed for fuel economy is 1500-2000rpm.

Summary. Hello, the reasons for the high speed of the automatic transmission car but not speeding up are: 1. The failure of the gasoline pump and the blockage of the fuel filter will also cause the engine power to decrease; 2. The engine is faulty. 3. Clutch slippage, clutch slippage is mainly manifested in the acceleration of the car while driving, resulting in the weakness of the driving wheels. 4. Engine oil circuit system, long-term shortage of oil, light power is insufficient, fuel consumption increases, heavy piston hits the door, so that the relevant connectors are mechanically damaged.

Automatic transmission usually refers to the automatic shift mechanism of the car, and the control system of the automatic transmission automatically selects the appropriate gear according to the speed and load of the engine when driving, thus replacing the subjective judgment of the timing and shift operation of people.

The automatic transmission car stepped on the accelerator and the number of revolutions went up, and the speed could not be raised, what was going on.

Hello, the reasons for the high speed of the automatic transmission car but not speeding up are: 1. The failure of the gasoline pump and the blockage of the fuel filter will also cause the engine power to decrease; 2. The engine is faulty. 3. Clutch slippage, clutch slippage is mainly manifested in the acceleration of the car while driving, resulting in the weakness of the driving wheels. 4. Engine oil circuit system, long-term shortage of oil, light power is insufficient, fuel consumption increases, heavy piston hits the door, so that the relevant connectors are mechanically damaged. Automatic transmission usually refers to the automatic shift mechanism of the car, and the control system of the automatic transmission automatically selects the appropriate gear according to the speed and load of the engine when driving, thus replacing the subjective judgment of the timing and shift operation of people.

Hello, I hope my reply can help you, good morning

How to fix it. Hello, he removed the whole seat, you loosen the screws in the back row, and send them away one by one, there are about 4 screws.

Hello, please wait for you to inquire about the relevant information and reply immediately.

Hello, after stepping on the accelerator, the speed goes up and the speed does not go up is basically the problem of the automatic transmission, the common main reason is the slippage of the automatic transmission, and it will also be accompanied by serious wear and even scorching of the clutch or brake friction plates. If the automatic transmission is slipping, then do not rush to disassemble and disassemble, you should first do a variety of inspection tests to find out the real reason for the high speed but not the speed.

Hello, the above is my reply, I wish you a happy and happy new day.