When the automatic transmission “kicks” when shifting from Park to another gear, this may indicate the following problems:
* Torque converter problem: The torque converter provides smooth gear shifting by absorbing engine torque. If the torque converter is faulty (such as a worn clutch or faulty lockup clutch), it can cause harsh shifting.
* Faulty shift valve: The shift valve controls the flow of fluid into the automatic transmission and selects gear. If the valve is faulty, it may issue incorrect commands, resulting in kicking.
* Low or contaminated hydraulic fluid: The hydraulic fluid (transmission fluid) transmits power and lubricates automatic transmission components. If the fluid level is low or contaminated, it can cause insufficient pressure and lead to slippage or kicking.
* Worn clutches: Clutches provide traction between the discs in an automatic transmission, which allows you to change gears. If the clutches are worn or dirty, it can cause slipping and harsh shifting.
* Faulty automatic transmission control module: The automatic transmission control module (PCM) controls gear shifting based on signals from various sensors. A faulty PCM can result in improper shifting and kicking.
Possible solutions:
* Check the level and condition of the transmission fluid (replacement or topping up may be required).
* Replace or repair the faulty torque converter.
* Replace or repair the faulty switch valve.
* Replace worn clutches.
* Reprogram or replace the faulty PCM.