Possible causes of kicks in the Toyota Vista gearbox:
1. Low transmission fluid level:
*Transmission fluid does not adequately lubricate and cool transmission components, resulting in friction and kicking.
2. Dirty transmission fluid:
*Over time, transmission fluid accumulates contaminants and sawdust, which reduces its efficiency and can lead to kicking.
3. Faulty solenoids:
* Solenoids control the flow of transmission fluid, and failure of them can result in irregular shifts and kicking.
4. Worn friction plates:
* Friction plates transfer power from the engine to the transmission, and wear on them can cause slippage and kicking.
5. Faulty torque converter:
* The torque converter transfers power from the engine to the transmission, and a malfunction can result in kicking and slipping.
6. Faulty speed sensor:
* The speed sensor provides input to the transmission’s electronic control unit (ECU), and a malfunction can result in improper shifting and kicking.
7. Transmission ECU problems:
* The transmission ECU controls the transmission and a malfunction can lead to various problems including kicking.
8. Electrical wiring fault:
* Faulty wiring connecting the transmission ECU to other components can cause shifting problems and kicking.
Recommended actions:
1. Check the level and condition of the transmission fluid. If necessary, add or replace fluid.
2. If the transmission fluid is dirty, flush and replace it.
3. Have a qualified mechanic diagnose and repair faulty components such as solenoids, friction plates, torque converter or sensors.
4. Check the electrical wiring for any faults.