Possible reasons for automatic transmission kicking on Toyota:
1. Low transmission fluid level or contamination:
* Insufficient fluid level can cause pressure loss and poor gear shifting.
* Contaminated fluid may contain suspended matter and impurities that impede valve operation.
2. Clogged transmission filter:
* A clogged filter restricts the fluid flow inside the transmission, resulting in increased pressure and kicking.
3. Faulty solenoids:
* Solenoids are solenoid valves that control the flow of fluid in the transmission.
* Solenoid failure can result in improper shifting and kicking.
4. Worn clutches:
*Clutches are linings that create friction between the rotating components of the transmission.
* Worn clutches can slip, causing vibration and kicking.
5. Problems with sensors:
* The transmission uses various sensors to detect speed, throttle position and other parameters.
* A faulty sensor may provide incorrect data, resulting in incorrect switching.
6. Faulty Transmission Control Unit (TCU):
* The TCU is the computer that controls the transmission.
* A faulty TCU may result in incorrect shift commands and kicks.
7. Problems with the torque converter:
* The torque converter transfers power from the engine to the transmission.
* A faulty torque converter may slip or vibrate, causing kicking.
8. Mechanical problems:
* Failure of internal transmission components such as gears, synchronizers or bearings can cause noise and kicking.
Recommended actions:
* Check the level and condition of the transmission fluid.
* Replace the transmission filter.
* Diagnose the solenoids.
* Inspect clutches for wear.
* Check the sensors.
* Diagnose TCU.
* Check the torque converter.
*If mechanical problems are suspected, contact a qualified mechanic for further diagnosis.