Kicks when shifting gears in an automatic transmission can be caused by several reasons:
Low transmission fluid (ATF):
* Low ATF levels result in insufficient pressure and poor lubrication, which causes clutch slipping and shock during gear changes.
Contaminated ATF:
*Old or contaminated ATF contains particles and sediment that can clog the valve body and solenoids, resulting in rough shifting.
Worn or damaged internal components:
* Worn clutches, broken bands or a damaged drum can create shock and kick when shifting gears.
Faulty valve body:
* The valve body controls ATF flow and pressure, so faulty solenoids or passages can cause misshifting and harsh knocks.
Faulty speed sensor:
* The speed sensor reports the speed of rotation of the transmission shafts. A faulty sensor may provide incorrect information, resulting in incorrect shifting and kicking.
Other possible reasons:
*Faulty Transmission Control Module (TCM)
* Clogged automatic transmission oil filter
* Worn oil pump
* Incorrect shift cable adjustment
If you experience kicking when shifting gears in your automatic transmission, it is recommended that you contact a qualified mechanic for diagnosis and repair. Ignoring this problem can result in serious damage to the transmission.