Repair of Japanese automatic transmissions
Main causes of malfunctions:
* Insufficient transmission fluid level
* Damage to planetary gears
* Valve block wear
* Malfunctions of the electronic control unit (ECU)
Symptoms of malfunctions:
* Slipping when changing gears
* Delays when shifting gears
* Gear changes too early or late
* Vibrations or jerks when shifting gears
* Transmission fluid leaks
Repair stages:
1. Diagnostics: Inspection and testing of the transmission, reading fault codes.
2. Disassembly and inspection: Removing the gearbox from the vehicle and disassembling it. Thorough inspection of all gearbox components.
3. Replace or repair damaged components: Replace worn or damaged planetary gears, valve body, solenoids or ECU.
4. Cleaning and reassembly: Clean all gearbox components and reassemble in reverse order.
5. Filling with transmission fluid and checking: Filling the transmission with new transmission fluid and checking its level.
6. Inspection and Adjustment: Carry out a test drive to check for smooth shifting and no leaks.
Specialized tools and equipment:
* Special pullers and clamps
* Calibration equipment
* Diagnostic scanner
Important:
* Repair of Japanese automatic transmissions should only be performed by qualified specialists.
*Using the manufacturer’s recommended transmission fluid is critical to proper transmission operation.
* Regular maintenance, such as changing the transmission fluid and filter, can extend the life of the transmission.