When the brake is pressed, shocks in the automatic transmission can be caused by:
* Contaminated or old transmission fluid: Contaminated fluid can cause poor lubrication and increased friction, resulting in jerking.
*Low transmission fluid level: Insufficient fluid levels can cause clutches and gears to slip, resulting in jerking.
* Problems with solenoids or valves: Solenoids and valves regulate the flow of fluid into the automatic transmission. Failures in their operation can cause incorrect switching points, which leads to shocks.
* Problems with the torque converter: The torque converter transmits torque from the engine to the automatic transmission. Problems with it can cause vibration or shock when shifting gears.
* Worn gears or clutches: As automatic transmission components wear, they can begin to slip or snag, resulting in jerking.
*Wiring Problems: Wiring faults can interfere with sensors or solenoids, resulting in incorrect shift timing and jerking.
* Transmission control module (TCM) problems: The TCM is responsible for the operation of the automatic transmission. Its malfunction can cause various problems, including shaking.