Possible reasons for the automatic transmission jolting when driving smoothly:
Transmission faults:
* Wear of friction discs
* Torque converter malfunctions
* Failure of the planetary gear
* Faulty gear shift solenoids
Problems with the hydraulic system:
*Low transmission fluid level
* Transmission fluid contamination
* Malfunctions of the hydraulic control unit
*Transmission fluid pressure problems
Electrical problems:
* Faulty gear selector position sensor
* Malfunction of input shaft speed sensor
*Wiring problems
Other reasons:
* Worn spark plugs or ignition coils (causes rough running of the engine)
* Faulty fuel system (causes fluctuations in fuel delivery)
Diagnostics and repair:
Diagnosing and repairing the problem requires specialized knowledge and equipment. Here are the steps that are typically followed:
* Checking the level and condition of the transmission fluid:
* Computer Diagnostics: Reading trouble codes from the on-board computer can indicate the cause of the problem.
* Hydraulic system check: Measuring transmission fluid pressure and checking hydraulic components.
* Mechanical Component Inspection: Disassemble and inspect transmission parts for wear or damage.
Once the cause of the shaking is identified, the mechanic will perform the appropriate repairs, such as:
* Replacement of friction discs
* Repair or replacement of torque converter
* Planetary gear bulkhead
* Replacement of gear shift solenoids
* Replacement of hydraulic control unit
* Troubleshoot electrical problems
It is important to correct the problem immediately to prevent further damage to the transmission and ensure smooth, reliable shifting.