What Causes Difficulty in Shifting Gears in Automatic Transmissions?

[LaIker]

Reasons for difficulty in shifting gears in automatic transmissions: 1. The unlock button was not pressed during gear shifting. Straight-line automatic transmission shift levers should have an error-proof locking mechanism, and this button should be pressed during gear shifting operations; 2. Some transmissions are equipped with speed protection devices, allowing gear shifts only when the vehicle speed is 0; 3. The transmission gear guide bearing may be stuck, possibly due to lack of lubrication; 4. There may be mechanical faults in the transmission gear switching mechanism. The normal engine speed for automatic transmissions is generally between 700 to 800 RPM. If the speed is too low, the engine is prone to shaking, and if it's too high, fuel consumption increases. The idle speed may automatically increase by 50 to 150 RPM under the following conditions: 1. Cold start with low water temperature; 2. Weak battery; 3. Air conditioning cooling is on.