Possible reasons why an automatic transmission stops working when driving:
Mechanical problems:
* Transmission fluid leak: Low fluid levels can cause transmission failure.
* Faulty torque converter: It transfers power from the engine to the transmission and can fail due to clogs or breakdown.
* Friction disc wear: They transmit power from the planetary gear and can wear out over time.
* Faulty oil pump: It circulates the automatic transmission fluid and can fail due to breakdown or clogging.
* Faulty planetary gear: This transfers power from the engine to the wheels and can fail due to wear or damage.
Electrical problems:
* Faulty input shaft speed sensor: It transmits information about engine speed to the automatic transmission control unit.
* Faulty output shaft speed sensor: It transmits information about wheel speed to the automatic transmission control unit.
* Faulty Transmission Control Unit (TCU): It controls the operation of the automatic transmission and can fail due to electrical failures.
* Faulty wiring or connectors: Poor connections or damaged wires can interrupt the operation of the automatic transmission.
Software problems:
* TCU software malfunction: Software glitches can disrupt the operation of the automatic transmission.
Hydraulic problems:
* Clogged or dirty automatic transmission filter: This can restrict fluid flow and lead to transmission failure.
* Faulty hydraulic valves: These control the flow of fluid into the automatic transmission and can fail due to worn or faulty solenoids.
Troubleshooting Tips:
* Check the automatic transmission fluid level.
* Scan your vehicle for trouble codes.
* Check the electrical connection and wiring.
*Consult a qualified mechanic for diagnosis and repair.