Possible causes of automatic transmission kicking when reducing speed:
Problems with the hydraulic system:
*Low or contaminated transmission fluid
* Faulty or clogged valve body
* Worn friction discs and steel plates
Electronic control problems:
*Faulty or dirty shift solenoid
* Incorrect input data from sensors (rpm, speed, throttle position)
* Faulty Transmission Control Module (TCM)
Mechanical problems:
* Worn or damaged gears
* Worn bushings or bearings
* Faulty differential
* Slip torque converter
Other possible reasons:
* Malfunction of the ignition or fuel supply system, which leads to sudden changes in engine torque
* Worn engine or transmission mounts that cause vibration and kicking
* Uneven or improperly balanced tires
Diagnostic steps:
1. Check the level and condition of the transmission fluid.
2. Scan the car’s computer for fault codes.
3. Check shift solenoids and sensors.
4. Inspect the transmission for leaks or damage.
5. Perform a test drive with a diagnostic scanner connected to monitor transmission data.
Recommended actions:
If you experience automatic transmission kicking when slowing down, it is recommended that you contact a qualified mechanic as soon as possible for diagnosis and repair. A faulty automatic transmission can lead to more serious damage and costly repairs.