What is the feeling of frustration when you step on the accelerator deeply and accelerate rapidly?

The characteristics of automatic transmission, stepping on the accelerator with big feet, will be frustrated by upshifting.

First, check the throttle:

Check whether the throttle is good or bad:

1. First, check whether it is stable from idle speed.

2. Then, step on the accelerator to 4000 rpm in neutral, and release the accelerator pedal to see if the accelerator falls back smoothly.

3. Finally, check whether there is a fault code, and clean the lower throttle, nozzle and intake branch pipe after normal driving for 4 kilometers.

2. Check the fuel injector:

There are two kinds of nozzle failures:

1. Mechanical sticking or blockage

2. Circuit failure.

In view of the first case, it can be removed and put on the syringe cleaning agent for experiments.

In the second case, you can read the fault code through the decoder, or hear the working sound of the injectors one by one through the stethoscope, or you can measure whether the control signal and coil of each injector are normal.

Automatic cars usually use hydraulic transmission to replace the mechanical clutch of manual cars, so there is no clutch pedal. When the engine speed is low, the torque transmitted by the liquid is limited, which is not enough to push the car forward. Release the brake pedal when the joystick is placed in the forward gear. With the increase of fuel quantity and engine speed, the transmitted torque increases, pushing the car forward.

If a driver with a high level of manual transmission is compared with an automatic transmission car, under the same driving conditions, the fuel consumption of an automatic transmission car is generally about 6 ~ 10%, and the fuel consumption of an automatic transmission car is higher than that of the same type of manual transmission car, and the fuel consumption per 100 kilometers is about 1 liter. In terms of automobile cost, the cost of automatic gearbox is higher than that of manual gearbox of the same model. Its advantage over manual transmission is easy to drive.

References:

Automatic car