Frequent problems with automatic transmission in Toyota Caldina
1. Gearbox slipping
*Transmission slipping may occur when upshifting or accelerating.
* Reasons: contamination of the automatic transmission fluid, wear of the friction plates, malfunction of the torque converter.
2. Hard gear shifting
*Hard shifting may feel like a jolt or bump when shifting.
* Reasons: wear of solenoids, clogged valve body, contamination of automatic transmission fluid.
3. Automatic transmission fluid leak
* An automatic transmission fluid leak can lead to low fluid levels and overheating of the transmission.
* Causes: Damage to gaskets, seals or pipelines.
4. Gear shifting at too high or too low speeds
* Shifting gears at too high or too low speeds may indicate a faulty engine speed sensor or a faulty automatic transmission control module.
5. Reverse gear does not engage
* If reverse gear does not engage, the control unit, shift solenoid, or transmission mechanics may be damaged.
6. Hum or howl when moving
*A hum or whine may indicate problems with the bearings, gears, or other mechanical component of the automatic transmission.
7. Overheating
* Overheating of the automatic transmission can damage internal components.
* Reasons: contaminated automatic transmission fluid, clogged radiator, faulty thermostat.
Diagnostics and repair
Diagnosis of problems with automatic transmission in Toyota Caldina should be carried out by a qualified mechanic. To diagnose, a mechanic can use a fault code scanner, check the level and condition of the automatic transmission fluid, and also conduct a test drive.
Automatic transmission repair may include replacing the automatic transmission fluid, flushing the valve body, replacing solenoids or mechanical components. More complex problems may require more extensive repairs or even automatic transmission replacement.
Prevention
To prevent problems with automatic transmission, it is important to carry out timely transmission maintenance, which includes:
* Regular replacement of automatic transmission fluid
* Flushing the hydraulic unit
* Checking the level and condition of the automatic transmission fluid
* Avoiding sudden accelerations and vehicle overloads
*Use of high quality automatic transmission fluid recommended by the manufacturer