Possible reasons for the Hyundai Solaris automatic transmission kicking:
1. Low level or contaminated automatic transmission fluid:
*Low fluid levels can cause underpressure and transmission slippage.
* Contaminated fluid may contain metal particles or sediment that will prevent smooth shifting.
2. Faulty solenoids:
* Solenoids regulate fluid pressure in the automatic transmission.
*A faulty solenoid can shift gears incorrectly or even cause the transmission to lock up.
3. Worn or damaged friction discs:
* Friction discs are responsible for transferring power from the engine to the transmission.
* Wear or damage to these discs may cause slipping or jerking when shifting.
4. Faulty automatic transmission control unit (TCU):
* TCU is an electronic control system responsible for the operation of the automatic transmission.
*A faulty TCU can misinterpret sensor signals and cause the transmission to kick.
5. Clogged automatic transmission filter:
* The automatic transmission filter catches particles that can contaminate the fluid.
*A clogged filter can restrict fluid flow and cause transmission kicking.
6. Loose or damaged automatic transmission mounts:
* Loose mountings can cause the transmission to move, causing jerking or knocking noises when shifting.
7. Faulty automatic transmission sensors:
* Automatic transmission sensors transmit data about speed, transmission position and the status of other components back to the TCU.
* A faulty sensor may provide false information, resulting in incorrect gear shifting.
8. Mechanical damage:
*Internal transmission components, such as gears or bearings, can wear out or become damaged over time.
* This may cause noise, vibration and kicking when shifting gears.
9. Automatic transmission software:
*In some cases, automatic transmission software updates may resolve shifting problems.
*Outdated or faulty software may cause the transmission to kick.
Recommendations:
* Regularly check the level and condition of the automatic transmission fluid.
* Replace the automatic transmission fluid and filter in accordance with the manufacturer’s recommendations.
* Have your automatic transmission inspected and any necessary component replacements performed by a qualified mechanic.
* Avoid aggressive driving, which may overload the automatic transmission.
* Regularly check the transmission mounts and other transmission components for signs of wear or damage.